Pharmacy Guide

Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.

Pharmacy Guide

Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.

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Seroxat 20mg tablets

⚠ This medicine appears to have been discontinued

The electronic medicines compendium (emc) no longer publishes a Summary of Product Characteristics for this product, which usually means it is no longer marketed in the UK. The patient leaflet below is kept for reference, but the product may not be available.

If you were prescribed this medicine, other products containing Paroxetine hydrochloride hemihydrate may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.

Active substance: Paroxetine hydrochloride hemihydrate

Equivalent medicines (same active substance, strength and form)

Source: electronic medicines compendium (emc)
Official leaflet: Read the PIL on emc

What it is and what it is used for

for Seroxat is a treatment for adults with depression and/or anxiety disorders. The anxiety disorders that Seroxat is used to treat are: obsessive compulsive disorder (repetitive, obsessive thoughts with uncontrollable behaviour); panic disorder (panic attacks, including those caused by agoraphobia, which is a fear of open spaces); social anxiety disorder (fear or avoidance of social situations); post-traumatic stress disorder (anxiety caused by a traumatic event); and generalised anxiety disorder (generally feeling very anxious or nervous). Seroxat is one of a group of medicines called SSRIs (selective serotonin reuptake inhibitors). It is not fully understood how Seroxat and other SSRIs work but they may help by increasing the level of serotonin in the brain. Treating depression or anxiety disorders properly is important to help you get better.

What you need to know before you take it

e Seroxat Do not take Seroxat •

• • 

If you are taking medicines called monoamine oxidase inhibitors (MAOIs, including moclobemide and methylthioninium chloride (methylene blue)) or have taken them at any time within the last two weeks. Your doctor will advise you how you should begin taking Seroxat once you have stopped taking the MAOI If you are taking an anti-psychotic called thioridazine or an anti-psychotic called pimozide If you are allergic to paroxetine or any of the other ingredients of this medicine (listed in section 6). If any of these apply to you, tell your doctor without taking Seroxat

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Warnings and precautions

Talk to your doctor or pharmacist before taking Seroxat

  • Are you taking any other medicines (see Other medicines and Seroxat, inside this leaflet)?
  • Are you taking tamoxifen to treat breast cancer or fertility problems? Seroxat may make tamoxifen less effective, so your doctor may recommend you take another antidepressant.
  • Do you have kidney, liver or heart trouble?
  • Do you have an abnormality of your heart tracing after an electrocardiogram (ECG) known as prolonged QT interval?
  • Do you have a family history of QT prolongation, heart disease such as heart failure, low heart rate, or low potassium levels or low magnesium levels?
  • Do you have epilepsy or have a history of fits or seizures?
  • Have you ever had episodes of mania (overactive behaviour or thoughts)?
  • Are you having electro-convulsive therapy (ECT)?
  • Do you have a history of bleeding disorders, or are you taking other medicines that may increase the risk of bleeding (these include medicines used to thin the blood, such as warfarin, antipsychotics such as perphenazine or clozapine, tricyclic antidepressants, medicines used for pain and inflammation called non-steroidal anti-inflammatory drugs or NSAIDs, such as acetylsalicylic acid, ibuprofen, celecoxib, etodolac, diclofenac, meloxicam)?
  • Do you have diabetes?
  • Are you on a low sodium diet?
  • Do you have glaucoma (pressure in the eye)?
  • Are you pregnant or planning to get pregnant (see Pregnancy, breast-feeding and fertility, inside this leaflet)?
  • Are you under 18 years old (see Children and adolescents under 18, inside this leaflet)?  If you answer YES to any of these questions, and you have not already discussed them with your doctor, go back to your doctor and ask what to do about taking Seroxat.

Children and adolescents under 18

Seroxat should not be used for children and adolescents under 18 years. Also, patients under 18 have an increased risk of side effects such as suicide attempt, suicidal thoughts and hostility (predominantly aggression, oppositional behaviour and anger) when they take Seroxat. If your doctor has prescribed Seroxat for you (or your child) and you want to discuss this, please go back to your doctor. You should inform your doctor if any of the symptoms listed above develop or worsen when you (or your child) are taking Seroxat. Also, the long-term safety effects, concerning growth, maturation and cognitive and behavioural development, of Seroxat in this age group have not yet been demonstrated. In studies of Seroxat in under 18s, common side effects that affected less than 1 in 10 children/adolescents were: an increase in suicidal thoughts and suicide attempts; deliberately harming themselves; being hostile; aggressive or unfriendly; lack of appetite; shaking; abnormal sweating; hyperactivity (having too much energy); agitation; changing emotions (including crying and changes in mood); and unusual bruising or bleeding (such as nose bleeds). These studies also showed that the same symptoms affected children and adolescents taking sugar pills (placebo) instead of Seroxat, although these were seen less often. Some patients in these studies of under 18s had withdrawal effects when they stopped taking Seroxat. These effects were mostly similar to those seen in adults after stopping Seroxat (see section 3). In addition, patients under 18 also commonly (affecting less than 1 in 10) experienced stomach ache, feeling nervous and changing emotions (including crying, changes in mood, trying to hurt themselves, thoughts of suicide and attempting suicide).

Thoughts of suicide and worsening of your depression or anxiety disorder

If you are depressed and/or have anxiety disorders you can sometimes have thoughts of harming or killing yourself. These may be increased when first starting antidepressants, since these medicines all take time to work, usually about two weeks but sometimes longer. You may be more likely to think like this:

  • If you have previously had thoughts about killing or harming yourself.

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• 

If you are a young adult. Information from clinical trials has shown an increased risk of suicidal behaviour in adults aged less than 25 years with psychiatric conditions who were treated with an antidepressant. If you have thoughts of harming or killing yourself at any time, contact your doctor or go to a hospital straight away.

You may find it helpful to tell a relative or close friend that you are depressed or have an anxiety disorder, and ask them to read this leaflet. You might ask them to tell you if they think your depression or anxiety is getting worse, or if they are worried about changes in your behaviour.

Important side effects seen with Seroxat

Some patients who take Seroxat develop something called akathisia, where they feel restless and feel like they can't sit or stand still. Other patients develop something called serotonin syndrome, or neuroleptic malignant syndrome, where they have some or all of the following symptoms: feeling very agitated or irritable, feeling confused, feeling restless, feeling hot, sweating, shaking, shivering, hallucinations (strange visions or sounds), muscle stiffness, sudden jerks of the muscles or a fast heartbeat. The severity can increase, leading to loss of consciousness. If you notice any of these symptoms, contact your doctor. For more information on these or other side effects of Seroxat, see section 4. Medicines like 'Seroxat' (so called SSRIs) may cause symptoms of sexual dysfunction (see section 4). In some cases, these symptoms have continued after stopping treatment.

Other medicines and Seroxat

Some medicines can affect the way Seroxat works or make it more likely that you will have side effects. Seroxat can also affect the way some other medicines work. These include:

  • Medicines called monoamine oxidase inhibitors (MAOIs, including moclobemide and methylthioninium chloride (methylene blue)) – see Do not take Seroxat, inside this leaflet
  • Medicines known to increase the risk of changes in the electrical activity of the heart (e.g. the anti-psychotics thioridazine or pimozide) – see Do not take Seroxat, inside this leaflet
  • Aspirin (acetylsalicylic acid), ibuprofen or other medicines called NSAIDs (non-steroidal antiinflammatory drugs) like celecoxib, etodolac, diclofenac and meloxicam, used for pain and inflammation
  • Tramadol, buprenorphine and pethidine, painkillers
  • Buprenorphine combined with naloxone, substitution treatment for opioid drug addiction
  • Medicines called triptans, such as sumatriptan, used to treat migraine
  • Other antidepressants including other SSRIs, tryptophan and tricyclic antidepressants like clomipramine, nortriptyline and desipramine
  • A dietary supplement called tryptophan
  • Mivacurium and suxamethonium (used in anaesthesia)
  • Medicines such as lithium, risperidone, perphenazine, clozapine (called anti-psychotics) used to treat some psychiatric conditions
  • Fentanyl, used in anaesthesia or to treat chronic pain
  • A combination of fosamprenavir and ritonavir, which is used to treat Human Immunodeficiency Virus (HIV) infection
  • St John's Wort, a herbal remedy for depression
  • Phenobarbital, phenytoin, sodium valproate or carbamazepine, used to treat fits or epilepsy
  • Atomoxetine which is used to treat attention deficit hyperactivity disorder (ADHD)
  • Procyclidine, used to relieve tremor, especially in Parkinson's Disease
  • Warfarin or other medicines (called anticoagulants) used to thin the blood
  • Propafenone, flecainide and medicines used to treat an irregular heartbeat
  • Metoprolol, a beta-blocker used to treat high blood pressure and heart problems
  • Pravastatin, used to treat high cholesterol
  • Rifampicin, used to treat tuberculosis (TB) and leprosy
  • Linezolid, an antibiotic
  • Tamoxifen, which is used to treat breast cancer or fertility problems.

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If you are taking or have recently taken any of the medicines in this list, and you have not already discussed these with your doctor, go back to your doctor and ask what to do. The dose may need to be changed or you may need to be given another medicine.

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines, including medicines obtained without a prescription.

Seroxat with food, drink and alcohol

Do not drink alcohol while you are taking Seroxat. Alcohol may make your symptoms or side effects worse. Taking Seroxat in the morning with food will reduce the likelihood of you feeling sick (nausea).

Pregnancy, breast-feeding and fertility

If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. In babies whose mothers took Seroxat during the first few months of pregnancy, there have been some reports showing an increased risk of birth defects, in particular those affecting the heart. In the general population, about 1 in 100 babies are born with a heart defect. This increased to up to 2 in 100 babies in mothers who took Seroxat. You and your doctor may decide that it is better for you to change to another treatment or to gradually stop taking Seroxat while you are pregnant. However, depending on your circumstances, your doctor may suggest that it is better for you to keep taking Seroxat. Make sure your midwife or doctor knows you're taking Seroxat. If you take SEROXAT near the end of your pregnancy there may be an increased risk of heavy vaginal bleeding shortly after birth, especially if you have a history of bleeding disorders. Your doctor or midwife should be aware that you are taking SEROXAT so they can advise you. When taken during pregnancy, particularly late pregnancy, medicines like Seroxat may increase the risk of a serious condition in babies, called persistent pulmonary hypertension of the newborn (PPHN). In PPHN, the blood pressure in the blood vessels between the baby's heart and the lungs is too high. If you take Seroxat during the last 3 months of pregnancy, your newborn baby might also have other conditions, which usually begin during the first 24 hours after birth. Symptoms include:

  • trouble with breathing
  • a blue-ish skin or being too hot or cold
  • blue lips
  • vomiting or not feeding properly
  • being very tired, not able to sleep or crying a lot
  • stiff or floppy muscles
  • tremors, jitters or fits
  • exaggerated reflexes.  If your baby has any of these symptoms when it is born, or you are concerned about your baby's health, contact your doctor or midwife who will be able to advise you. Seroxat may get into breast milk in very small amounts. If you are taking Seroxat, go back and talk to your doctor before you start breast-feeding. You and your doctor may decide that you can breast-feed while you are taking Seroxat. Paroxetine has been shown to reduce the quality of sperm in animal studies. Theoretically, this could affect fertility, but impact on human fertility has not been observed as yet.

Driving and using machines

Possible side effects of Seroxat include dizziness, confusion, feeling sleepy or blurred vision. If you do get these side effects, do not drive or use machinery.

Seroxat contains sodium

This medicine contains less than 1 mmol sodium (23 mg) per tablet, that is to say essentially 'sodium-free'.

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How to take it

Seroxat Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure. Seroxat tablets come in three strengths: 10 mg: White to pinkish-white tablets, marked with "FC1" on one side and "GS" on the other 20 mg: White tablets, marked with "20" 30 mg: Blue tablets, marked with "30" Sometimes you may need to take more than one tablet or half a tablet. This table will show you how many tablets to take. Dose Number of tablets to take 10 mg One white to pinkish-white tablet 20 mg One white tablet 30 mg One blue tablet 40 mg Two white tablets 50 mg One blue tablet + One white tablet or Two-and-a-half white tablets 60 mg Two blue tablets or Three white tablets The usual doses for different conditions are set out in the table below. Starting Recommended dose daily dose Depression 20 mg 20 mg Obsessive Compulsive Disorder 20 mg 40 mg (obsessions and compulsions) Panic Disorder (panic attacks) 10 mg 40 mg Social Anxiety Disorder (fear or 20 mg 20 mg avoidance of social situations) Post-Traumatic Stress Disorder 20 mg 20 mg Generalised Anxiety Disorder 20 mg 20 mg

Maximum daily dose 50 mg 60 mg 60 mg 50 mg 50 mg 50 mg

Your doctor will advise you what dose to take when you first start taking Seroxat. Most people start to feel better after a couple of weeks. If you don't start to feel better after this time, talk to your doctor, who will advise you. He or she may decide to increase the dose gradually, 10 mg at a time, up to a maximum daily dose. Take your tablets in the morning with food. Swallow them with a drink of water. Do not chew. Your doctor will talk to you about how long you will need to keep taking your tablets. This may be for many months or even longer.

Older people

The maximum dose for people over 65 is 40 mg per day.

Patients with liver or kidney disease

If you have trouble with your liver or kidneys your doctor may decide that you should have a lower dose of Seroxat than usual. If you have severe liver or kidney disease the maximum dose is 20 mg per day. 5

If you take more Seroxat than you should

Never take more tablets than your doctor recommends. If you take too many Seroxat tablets (or someone else does), tell your doctor or a hospital straight away. Show them the pack of tablets. Someone who has taken an overdose of Seroxat may have any one of the symptoms listed in section 4, Possible side effects, or the following symptoms: fever; uncontrollable tightening of the muscles.

If you forget to take Seroxat

Take your medicine at the same time every day. If you do forget a dose, and you remember before you go to bed, take it straight away. Carry on as usual the next day. If you only remember during the night, or the next day leave out the missed dose. You may possibly get withdrawal effects, but these should go away after you take your next dose at the usual time. Do not take a double dose to make up for a forgotten dose.

What to do if you're feeling no better

Seroxat will not relieve your symptoms straight away – all antidepressants take time to work. Some people will start to feel better within a couple of weeks, but for others it may take a little longer. Some people taking antidepressants feel worse before feeling better. If you don't start to feel better after a couple of weeks, go back to your doctor who will advise you. Your doctor should ask to see you again a couple of weeks after you first start treatment. Tell your doctor if you haven't started to feel better.

If you stop taking Seroxat

Do not stop taking Seroxat until your doctor tells you to. When stopping Seroxat, your doctor will help you to reduce your dose slowly over a number of weeks or months – this should help reduce the chance of withdrawal effects. One way of doing this is to gradually reduce the dose of Seroxat you take by 10 mg a week. Most people find that any symptoms on stopping Seroxat are mild and go away on their own within two weeks. For some people, these symptoms may be more severe, or go on for longer. If you get withdrawal effects when you are coming off your tablets your doctor may decide that you should come off them more slowly. If you get severe withdrawal effects when you stop taking Seroxat, please see your doctor. He or she may ask you to start taking your tablets again and come off them more slowly. It may be easier for you to take Seroxat oral suspension during the time that you are coming off your medicine. If you do get withdrawal effects, you will still be able to stop Seroxat.

Possible withdrawal effects when stopping treatment

Studies show that 3 in 10 patients notice one or more symptoms on stopping Seroxat. Some withdrawal effects on stopping occur more frequently than others. Common side effects These may affect up to 1 in 10 people

  • Feeling dizzy, unsteady or off-balance
  • Feelings like pins and needles, burning sensations and (less commonly) electric shock sensations, including in the head
  • Some patients have developed buzzing, hissing, whistling, ringing or other persistent noise in the ears (tinnitus) when they take Seroxat
  • Sleep disturbances (vivid dreams, nightmares, inability to sleep)
  • Feeling anxious

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•

Headaches.

Uncommon side effects These may affect up to 1 in 100 people

  • Feeling sick (nausea)
  • Sweating (including night sweats)
  • Feeling restless or agitated
  • Tremor (shakiness)
  • Feeling confused or disorientated
  • Diarrhoea (loose stools)
  • Feeling emotional or irritable
  • Visual disturbances
  • Fluttering or pounding heartbeat (palpitations).  Please see your doctor if you are worried about withdrawal effects when stopping Seroxat. If you have any further questions on the use of this medicine, ask your doctor or pharmacist.

Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them. Side effects are more likely to happen in the first few weeks of taking Seroxat.

See the doctor if you get any of the following side effects during treatment You may need to contact your doctor or go to a hospital straight away.

Uncommon side effects These may affect up to 1 in 100 people • If you have unusual bruising or bleeding, including vomiting blood or passing blood in your stools, contact your doctor or go to a hospital straight away. • If you find that you are not able to pass water, contact your doctor or go to a hospital straight away. Rare side effects These may affect up to 1 in 1,000 people • If you experience seizures (fits), contact your doctor or go to a hospital straight away. • If you feel restless and feel like you can't sit or stand still, you may have something called akathisia. Increasing your dose of Seroxat may make these feelings worse. If you feel like this, contact your doctor. • If you feel tired, weak or confused and have achy, stiff or uncoordinated muscles this may be because your blood is low in sodium. If you have these symptoms, contact your doctor. Very rare side effects These may affect up to 1 in 10,000 people

  • Allergic reactions, which may be severe to Seroxat. If you develop a red and lumpy skin rash, swelling of the eyelids, face, lips, mouth or tongue, start to itch or have difficulty breathing (shortness of breath) or swallowing and feel weak or lightheaded resulting in collapse or loss of consciousness contact your doctor or go to a hospital straight away.
  • If you have some or all of the following symptoms you may have something called serotonin syndrome. The symptoms include: feeling confused, feeling restless, sweating, shaking, shivering, hallucinations (strange visions or sounds), sudden jerks of the muscles or a fast heartbeat. If you feel like this contact your doctor.
  • Acute glaucoma. If your eyes become painful and you develop blurred vision, contact your doctor. Not known Frequency cannot be estimated from the available data

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Some people have had thoughts of harming or killing themselves while taking Seroxat or soon after stopping treatment (see Thoughts of suicide and worsening of your depression or anxiety disorder in section 2)

  • Some people have experienced aggression while taking SEROXAT
  • Heavy vaginal bleeding shortly after birth (postpartum haemorrhage), see Pregnancy, breastfeeding and fertility in section 2 for more information. If you experience these side effects, contact your doctor. •

Other possible side effects during treatment

Very common side effects These may affect more than 1 in 10 people

  • Feeling sick (nausea). Taking your medicine in the morning with food will reduce the chance of this happening.
  • Change in sex drive or sexual function. For example, lack of orgasm and, in men, abnormal erection and ejaculation. Common side effects These may affect up to 1 in 10 people
  • Increases in the level of cholesterol in the blood
  • Lack of appetite
  • Not sleeping well (insomnia) or feeling sleepy
  • Abnormal dreams (including nightmares)
  • Feeling dizzy or shaky (tremors)
  • Headache
  • Difficulty in concentrating
  • Feeling agitated
  • Feeling unusually weak
  • Blurred vision
  • Yawning, dry mouth
  • Diarrhoea or constipation
  • Vomiting
  • Weight gain
  • Sweating. Uncommon side effects These may affect up to 1 in 100 people
  • A brief increase in blood pressure, or a brief decrease that may make you feel dizzy or faint when you stand up suddenly
  • A faster than normal heartbeat
  • Lack of movement, stiffness, shaking or abnormal movements in the mouth and tongue
  • Dilated pupils
  • Skin rashes
  • Itching
  • Feeling confused
  • Having hallucinations (strange visions or sounds)
  • An inability to urinate (urinary retention) or an uncontrollable, involuntary passing of urine (urinary incontinence)
  • If you are a diabetic patient you may notice a loss of control of your blood sugar levels whilst taking Seroxat. Please speak to your doctor about adjusting the dosage of your insulin or diabetes medications.
  • Reduction in white blood cell count Rare side effects These may affect up to 1 in 1,000 people
  • Abnormal production of breast milk in men and women
  • A slow heartbeat
  • Effects on the liver showing up in blood tests of your liver function
  • Panic attacks

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• • • • • • •

Overactive behaviour or thoughts (mania) Feeling detached from yourself (depersonalisation) Feeling anxious Irresistible urge to move the legs (Restless Legs Syndrome) Pain in the joints or muscles Increase in a hormone called prolactin in the blood Menstrual period disorders (including heavy or irregular periods, bleeding between periods and absence or delay of periods

Very rare side effects These may affect up to 1 in 10,000 people

  • Skin rash, which may blister, and looks like small targets (central dark spots surrounded by a paler area, with a dark ring around the edge) called erythema multiforme
  • A widespread rash with blisters and peeling skin, particularly around the mouth, nose, eyes and genitals (Stevens-Johnson syndrome)
  • A widespread rash with blisters and skin peeling on much of the body surface (toxic epidermal necrolysis)
  • Liver problems that make the skin or whites of the eyes go yellow
  • Syndrome of inappropriate antidiuretic hormone production (SIADH) which is a condition in which the body develops an excess of water and a decrease in sodium (salt) concentration, as a result of improper chemical signals. Patients with SIADH may become severely ill or may have no symptoms at all
  • Fluid or water retention (which may cause swelling of the arms or legs)
  • Sensitivity to sunlight
  • Painful erection of the penis that won't go away
  • Low blood platelet count. Not known Frequency cannot be estimated from the available data
  • Inflammation of the colon (causing diarrhoea)
  • Tooth grinding Some patients have developed buzzing, hissing, whistling, ringing or other persistent noise in the ears (tinnitus) when they take Seroxat. An increased risk of bone fractures has been observed in patients taking this type of medicine.

Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at: Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.

How to store it

Seroxat • • • • • •

Keep this medicine out of the sight and reach of children. Do not use this medicine after the expiry date (EXP) which is stated on the blister and the carton. The expiry date refers to the last day of that month. Do not store your tablets above 30oC. Store in the original package in order to protect from light. If you are using half tablets, be careful to keep them safely in the pack. Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

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Contents of the pack and other information

What Seroxat contains

10 mg film-coated tablet The active substance is paroxetine (10 mg), as the hydrochloride hemihydrate. 20 mg film-coated tablet The active substance is paroxetine (20 mg), as the hydrochloride hemihydrate. 30 mg film-coated tablet The active substance is paroxetine (30 mg), as the hydrochloride hemihydrate. The other ingredients are 10 mg film-coated tablet in the tablet core: dibasic calcium phosphate dihydrate (E341), magnesium stearate (E470b) and sodium starch glycolate (Type A). in the tablet coat: hypromellose (E464), titanium dioxide (E171), macrogol 400, polysorbate 80 (E433) and iron oxide red (E172). 20 mg film-coated tablet in the tablet core: dibasic calcium phosphate dihydrate (E341), magnesium stearate (E470b) and sodium starch glycolate (Type A). in the tablet coat: hypromellose (E464), titanium dixoide (E171), macrogol 400 and polysorbate 80 (E433). 30 mg film-coated tablet in the tablet core: dibasic calcium phosphate dihydrate (E341), magnesium stearate (E470b) and sodium starch glycolate (Type A). in the tablet coat: hypromellose (E464), titanium dioxide (E171), macrogol 400, polysorbate 80 (E433) and indigo carmine (E132).

What Seroxat looks like and contents of the pack •

• •

Seroxat 10 mg film-coated tablets are white to pinkish-white, oval-shaped tablets, marked 'FC1' on one side and 'GS' on the other side. The tablets have a break bar on both sides. Each pack of Seroxat contains child-resistant blisters of 28 tablets Seroxat 20 mg film-coated tablets are white, oval-shaped tablets, marked '20' on one side, and with a break bar on the other side. Each pack of Seroxat contains child-resistant blisters of 30 tablets Seroxat 30 mg film-coated tablets are blue, oval-shaped tablets, marked '30' on one side, and with a break bar on the other side. The break bar is only to facilitate breaking for ease of swallowing and not to divide into equal doses. Each pack of Seroxat contains child-resistant blisters of 30 tablets.

Marketing Authorisation Holder and Manufacturer

Marketing Authorisation Holder: SmithKline Beecham Limited, 79 New Oxford Street, London, WC1A 1DG, United Kingdom Manufacturer: Delpharm Poznań Spółka Akcyjna, ul. Grunwaldzka 189, 60-322 Poznań, Poland You may also find it helpful to contact a self-help group or patient organisation to find out more about your condition. Your doctor will be able to give you details.

Other formats

To listen to or request a copy of this leaflet in Braille, large print or audio please call, free of charge:

0800 198 5000 (UK only) Please be ready to give the following information: Product name

Seroxat 10 mg tablets Seroxat 20 mg tablets

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Reference number

Seroxat 30 mg tablets 10592/0218

This is a service provided by the Royal National Institute of Blind People. This leaflet was last revised in: October 2024 Trademarks are owned by or licensed to the GSK group of companies © 2024 GSK group of companies or its licensor

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Frequently asked questions about Seroxat 20mg tablets

How do I take Seroxat 20mg tablets?

Seroxat 20mg tablets comes as tablet containing 20mg. Always follow the dose your doctor or pharmacist has given you, and read the leaflet that comes with the medicine.

What is the active substance in Seroxat 20mg tablets?

The active substance in Seroxat 20mg tablets is paroxetine hydrochloride hemihydrate.

Are there equivalent medicines to Seroxat 20mg tablets?

Medicines with the same active substance, strength and form include: Paroxetine 20mg Tablets. They are interchangeable only if your prescriber or pharmacist says so.

Where does this information come from?

This leaflet reproduces the patient information leaflet approved for Seroxat 20mg tablets, as published on the electronic medicines compendium (emc). The version printed inside your medicine’s packaging is the one that applies to you.

Can I get Seroxat 20mg tablets without a prescription?

Whether a medicine is available over the counter or on prescription only depends on its licence. Check the leaflet, or ask your pharmacist — they can tell you straight away.

About this leaflet

The text above reproduces the patient information leaflet approved for this medicine, restructured for easier reading.

Medical disclaimer: This page is for information only and does not replace advice from your doctor or pharmacist. Always read the leaflet supplied with your medicine. If you are unwell, call NHS 111; in an emergency, call 999.

Medicines with the same active substance: Paroxetine hydrochloride hemihydrate (5 medicines)
See every medicine containing this substance, or browse the full A–Z of active substances.
⚕For healthcare professionals — Summary of Product Characteristics (SmPC)Full SmPC: dosage, interactions, contraindications, warnings+
Technical information intended for healthcare professionals (doctors and pharmacists). The Summary of Product Characteristics (SmPC) is the official document approved by the MHRA/EMA. It does not replace the patient leaflet or a doctor’s advice.

4.1. Therapeutic indications

Treatment of

– Major Depressive Episode

– Obsessive Compulsive Disorder

– Panic Disorder with and without agoraphobia

– Social Anxiety Disorders/Social phobia

– Generalised Anxiety Disorder

– Post-Traumatic Stress Disorder

4.2. Posology and method of administration

Posology

Major depressive episode

The recommended dose is 20 mg daily. In general, improvement in patients starts after one week but may only become evident from the second week of therapy.

As with all antidepressant medicinal products, dosage should be reviewed and adjusted if necessary within 3 to 4 weeks of initiation of therapy and thereafter as judged clinically appropriate. In some patients, with insufficient response to 20 mg, the dose may be increased gradually up to a maximum of 50 mg a day in 10 mg steps according to the patient's response.

Patients with depression should be treated for a sufficient period of at least 6 months to ensure that they are free from symptoms.

Obsessive compulsive disorder (OCD)

The recommended dose is 40 mg daily. Patients should start on 20 mg/day and the dose may be increased gradually in 10 mg increments to the recommended dose. If after some weeks on the recommended dose insufficient response is seen some patients may benefit from having their dose increased gradually up to a maximum of 60 mg/day.

Patients with OCD should be treated for a sufficient period to ensure that they are free from symptoms. This period may be several months or even longer (see section 5.1).

Panic disorder

The recommended dose is 40 mg daily. Patients should be started on 10 mg/day and the dose gradually increased in 10 mg steps according to the patient's response up to the recommended dose. A low initial starting dose is recommended to minimise the potential worsening of panic symptomatology, which is generally recognised to occur early in the treatment of this disorder. If after some weeks on the recommended dose insufficient response is seen some patients may benefit from having their dose increased gradually up to a maximum of 60 mg/day.

Patients with panic disorder should be treated for a sufficient period to ensure that they are free from symptoms. This period may be several months or even longer (see section 5.1).

Social anxiety disorder/social phobia

The recommended dose is 20 mg daily. If after some weeks on the recommended dose insufficient response is seen some patients may benefit from having their dose increased gradually in 10 mg steps up to a maximum of 50 mg/day. Long-term use should be regularly evaluated (see section 5.1).

Generalised anxiety disorder

The recommended dose is 20 mg daily. If after some weeks on the recommended dose insufficient response is seen some patients may benefit from having their dose increased gradually in 10 mg steps up to a maximum of 50 mg/day. Long-term use should be regularly evaluated (see section 5.1).

Post-traumatic stress disorder

The recommended dose is 20 mg daily. If after some weeks on the recommended dose insufficient response is seen some patients may benefit from having their dose increased gradually in 10 mg steps up to a maximum of 50 mg/day. Long-term use should be regularly evaluated (see section 5.1).

Withdrawal symptoms seen on discontinuation of paroxetine

Abrupt discontinuation should be avoided (see sections 4.4 and 4.8). The taper phase regimen used in clinical trials involved decreasing the daily dose by 10 mg at weekly intervals. If intolerable symptoms occur following a decrease in the dose or upon discontinuation of treatment, then resuming the previously prescribed dose may be considered. Subsequently, the physician may continue decreasing the dose, but at a more gradual rate.

Children and adolescents (7-17 years)

Paroxetine should not be used for the treatment of children and adolescents as controlled clinical trials have found paroxetine to be associated with increased risk for suicidal behaviour and hostility. In addition, in these trials efficacy has not been adequately demonstrated (see sections 4.4 and 4.8).

Children aged below 7 years

The use of paroxetine has not been studied in children less than 7 years. Paroxetine should not be used, as long as safety and efficacy in this age group have not been established.

Elderly Population

Increased plasma concentrations of paroxetine occur in elderly subjects, but the range of concentrations overlaps with that observed in younger subjects. Dosing should commence at the adult starting dose. Increasing the dose might be useful in some patients, but the maximum dose should not exceed 40 mg daily.

Renal/hepatic impairment

Increased plasma concentrations of paroxetine occur in patients with severe renal impairment (creatinine clearance less than 30 mL/min) or in those with hepatic impairment. Therefore, dosage should be restricted to the lower end of the dosage range.

Method of administration

It is recommended that paroxetine is administered once daily in the morning with food. The tablet should be swallowed rather than chewed.

4.3. Contraindications

Hypersensitivity to the active substance or to any of the excipients listed in section 6.1.

Paroxetine is contraindicated in combination with monoamine oxidase inhibitors (MAOIs). In exceptional circumstances, linezolid (an antibiotic which is a reversible non-selective MAOI) can be given in combination with paroxetine provided that there are facilities for close observation of symptoms of serotonin syndrome and monitoring of blood pressure (see section 4.5).

Treatment with paroxetine can be initiated:

- two weeks after discontinuation of an irreversible MAOI, or

- at least 24hrs after discontinuation of a reversible MAOI (e.g. moclobemide, linezolid, methylthioninium chloride (methylene blue)).

At least one week should elapse between discontinuation of paroxetine and initiation of therapy with any MAOI.

Paroxetine is contraindicated in combination with thioridazine or with pimozide (see section 4.5).

4.4. Special warnings and precautions for use

Treatment with paroxetine should be initiated cautiously two weeks after terminating treatment with an irreversible MAOI or 24 hours after terminating treatment with a reversible MAO inhibitor. Dosage of paroxetine should be increased gradually until an optimal response is reached (see sections 4.3 and 4.5).

Paediatric population

Paroxetine should not be used in the treatment of children and adolescents under the age of 18 years. Suicide-related behaviours (suicide attempt and suicidal thoughts), and hostility (predominantly aggression, oppositional behaviour and anger) were more frequently observed in clinical trials among children and adolescents treated with antidepressants compared to those treated with placebo. If, based on clinical need, a decision to treat is nevertheless taken, the patient should be carefully monitored for the appearance of suicidal symptoms. In addition, long-term safety data in children and adolescents concerning growth, maturation and cognitive and behavioural development are lacking.

Suicide/suicidal thoughts or clinical worsening

Depression is associated with an increased risk of suicidal thoughts, self-harm and suicide (suicide-related events). This risk persists until significant remission occurs. As improvement may not occur during the first few weeks or more of treatment, patients should be closely monitored until such improvement occurs. It is general clinical experience that the risk of suicide may increase in the early stages of recovery.

Other psychiatric conditions for which paroxetine is prescribed can also be associated with an increased risk of suicide-related events. In addition, these conditions may be co-morbid with major depressive disorder. The same precautions observed when treating patients with major depressive disorder should therefore be observed when treating patients with other psychiatric disorders.

Patients with a history of suicide-related events, or those exhibiting a significant degree of suicidal ideation prior to commencement of treatment are known to be at greater risk of suicidal thoughts or suicide attempts, and should receive careful monitoring during treatment. A meta-analysis of placebo-controlled clinical trials of antidepressant medicinal products in adult patients with psychiatric disorders showed an increased risk of suicidal behaviour with antidepressants compared to placebo in patients less than 25 years old (see section 5.1).

Close supervision of patients and in particular those at high risk should accompany medicinal product therapy especially in early treatment and following dose changes. Patients (and caregivers of patients) should be alerted about the need to monitor for any clinical worsening, suicidal behaviour or thoughts and unusual changes in behaviour and to seek medical advice immediately if these symptoms present.

Akathisia/psychomotor restlessness

The use of paroxetine has been associated with the development of akathisia, which is characterized by an inner sense of restlessness and psychomotor agitation such as an inability to sit or stand still usually associated with subjective distress. This is most likely to occur within the first few weeks of treatment. In patients who develop these symptoms, increasing the dose may be detrimental.

Serotonin Syndrome/Neuroleptic Malignant Syndrome

On rare occasions development of a serotonin syndrome or neuroleptic malignant syndrome-like events may occur in association with treatment of paroxetine, particularly when given in combination with other serotonergic and/or neuroleptic medicinal products. As these syndromes may result in potentially life-threatening conditions, treatment with paroxetine should be discontinued if such events (characterised by clusters of symptoms such as hyperthermia, rigidity, myoclonus, autonomic instability with possible rapid fluctuations of vital signs, mental status changes including confusion, irritability, extreme agitation progressing to delirium and coma) occur and supportive symptomatic treatment should be initiated. Paroxetine should not be used in combination with serotonin-precursors (such as L-tryptophan, oxitriptan) due to the risk of serotonergic syndrome. (See sections 4.3 and 4.5).

Mania

As with all antidepressants, paroxetine should be used with caution in patients with a history of mania. Paroxetine should be discontinued in any patient entering a manic phase.

Renal/hepatic impairment

Caution is recommended in patients with severe renal impairment or in those with hepatic impairment (see section 4.2).

Diabetes

In patients with diabetes, treatment with an SSRI may alter glycaemic control. Insulin and/or oral hypoglycaemic dosage may need to be adjusted. Additionally, there have been studies suggesting that an increase in blood glucose levels may occur when paroxetine and pravastatin are co-administered (see section 4.5).

Epilepsy

As with other antidepressants, paroxetine should be used with caution in patients with epilepsy.

Seizures

Overall, the incidence of seizures is less than 0.1% in patients treated with paroxetine. The medicinal product should be discontinued in any patient who develops seizures.

Electroconvulsive therapy (ECT)

There is little clinical experience of the concurrent administration of paroxetine with ECT.

Glaucoma

As with other SSRIs, paroxetine can cause mydriasis and should be used with caution in patients with narrow angle glaucoma or history of glaucoma.

Cardiac Conditions

The usual precautions should be observed in patients with cardiac conditions.

QT Prolongation

Cases of QT interval prolongation have been reported during the post-marketing period. In a study of healthy subjects, paroxetine administered at repeated daily doses up to 60 mg did not prolong QTc (see section 5.1).

Paroxetine should be used with caution in patients with a (family) history of QT interval prolongation, concomitant use of anti-arrhythmic medications or other medications that may potentially prolong QT interval, relevant pre-existing cardiac disease such as heart failure, ischaemic heart disease, heart block or ventricular arrhythmias, bradycardia, and hypokalaemia or hypomagnesemia (see section 4.3 and 4.5).

Hyponatraemia

Hyponatraemia has been reported rarely, predominantly in the elderly. Caution should also be exercised in those patients at risk of hyponatraemia e.g. from concomitant medications and cirrhosis. The hyponatraemia generally reverses on discontinuation of paroxetine.

Haemorrhage

There have been reports of cutaneous bleeding abnormalities such as ecchymoses and purpura with SSRIs. Other haemorrhagic manifestations e.g. gastrointestinal and gynaecological haemorrhage have been reported. Elderly patients may be at an increased risk for non-menses related events of bleeding.

SSRIs/SNRIs may increase the risk of postpartum haemorrhage (see sections 4.6 and 4.8).

Caution is advised in patients taking SSRIs concomitantly with oral anticoagulants, medicinal products known to affect platelet function or other medicinal products that may increase risk of bleeding (e.g. atypical antipsychotics such as clozapine, phenothiazines, most TCAs, acetylsalicylic acid, NSAIDs, COX-2 inhibitors) as well as in patients with a history of bleeding disorders or conditions which may predispose to bleeding (see section 4.8).

Interaction with tamoxifen

Paroxetine, a potent inhibitor of CYP2D6, may lead to reduced concentrations of endoxifen, one of the most important active metabolites of tamoxifen. Therefore, paroxetine should whenever possible be avoided during tamoxifen treatment (see section 4.5).

Withdrawal symptoms seen on discontinuation of paroxetine treatment

Withdrawal symptoms when treatment is discontinued are common, particularly if discontinuation is abrupt (see section 4.8). In clinical trials adverse events seen on treatment discontinuation occurred in 30% of patients treated with paroxetine compared to 20% of patients treated with placebo. The occurrence of withdrawal symptoms is not the same as the drug being addictive or dependence producing.

The risk of withdrawal symptoms may be dependent on several factors including the duration and dose of therapy and the rate of dose reduction.

Dizziness, sensory disturbances (including paraesthesia, electric shock sensations and tinnitus), sleep disturbances (including intense dreams), agitation or anxiety, nausea, tremor, confusion, sweating, headache, diarrhoea, palpitations, emotional instability, irritability, and visual disturbances have been reported. Generally, these symptoms are mild to moderate; however, in some patients they may be severe in intensity. They usually occur within the first few days of discontinuing treatment, but there have been very rare reports of such symptoms in patients who have inadvertently missed a dose. Generally, these symptoms are self-limiting and usually resolve within two weeks, though in some individuals they may be prolonged (two-three months or more). It is therefore advised that paroxetine should be gradually tapered when discontinuing treatment over a period of several weeks or months, according to the patient's needs (see section 4.2).

Sexual dysfunction

Selective serotonin reuptake inhibitors (SSRIs) may cause symptoms of sexual dysfunction (see section 4.8). There have been reports of long-lasting sexual dysfunction where the symptoms have continued despite discontinuation of SSRIs.

Sodium

Each paroxetine tablet contains less than 1 mmol sodium (23 mg), that is to say essentially 'sodium-free'.

4.5. Interaction with other medicinal products and other forms of interaction

Serotonergic medicinal products

As with other SSRIs, co-administration with serotonergic medicinal products may lead to an incidence of 5-HT associated effects (serotonin syndrome: see section 4.4). Caution should be advised and a closer clinical monitoring is required when serotonergic medicinal products (such as L-tryptophan, triptans, tramadol, linezolid, methylthioninium chloride (methylene blue), SSRIs, lithium, pethidine, buprenorphine, and St. John's Wort – Hypericum perforatum – preparations) are combined with paroxetine. Caution is also advised with fentanyl used in general anaesthesia or in the treatment of chronic pain. Concomitant use of paroxetine and MAOIs is contraindicated because of the risk of serotonin syndrome (see section 4.3).

Pimozide

Increased pimozide levels of on average 2.5 times have been demonstrated in a study of a single low dose pimozide (2 mg) when co-administered with 60 mg paroxetine. This may be explained by the known CYP2D6 inhibitory properties of paroxetine. Due to the narrow therapeutic index of pimozide and its known ability to prolong QT interval, concomitant use of pimozide and paroxetine is contraindicated (see section 4.3).

Medicinal products that prolong the QT interval

The risk of QTc prolongation and/or ventricular arrhythmias (e.g. TdP) may be increased with concomitant use of other medicinal products which prolong the QTc interval (e.g. some antipsychotics) (see section 4.4). Concomitant use of thioridazine and paroxetine is contraindicated, because, as with other medicinal products which inhibit the hepatic enzyme CYP450 2D6, paroxetine can elevate plasma levels of thioridazine which can prolong QT interval (see section 4.3).

Drug metabolising enzymes

The metabolism and pharmacokinetics of paroxetine may be affected by the induction or inhibition of drug metabolising enzymes.

When paroxetine is to be co-administered with a known drug metabolising enzyme inhibitor, consideration should be given to using paroxetine doses at the lower end of the range.

No initial dosage adjustment is considered necessary when the medicinal product is to be co-administered with known drug metabolising enzyme inducers (e.g. carbamazepine, rifampicin, phenobarbital, phenytoin) or with fosamprenavir/ritonavir. Any paroxetine dosage adjustment (either after initiation or following discontinuation of an enzyme inducer) should be guided by clinical effect (tolerability and efficacy).

Neuromuscular Blockers

SSRIs may reduce plasma cholinesterase activity resulting in a prolongation of the neuromuscular blocking action of mivacurium and suxamethonium.

Fosamprenavir/ritonavir

Co-administration of fosamprenavir/ritonavir 700/100 mg twice daily with paroxetine 20 mg daily in healthy volunteers for 10 days significantly decreased plasma levels of paroxetine by approximately 55%. The plasma levels of fosamprenavir/ritonavir during co-administration of paroxetine were similar to reference values of other studies, indicating that paroxetine had no significant effect on metabolism of fosamprenavir/ritonavir. There are no data available about the effects of long-term co-administration of paroxetine and fosamprenavir/ritonavir exceeding 10 days.

Procyclidine

Daily administration of paroxetine increases significantly the plasma levels of procyclidine. If anti-cholinergic effects are seen, the dose of procyclidine should be reduced.

Anticonvulsants: carbamazepine, phenytoin, sodium valproate

Concomitant administration does not seem to show any effect on pharmacokinetic/dynamic profile in epileptic patients.

CYP2D6 inhibitory potency of paroxetine

As with other antidepressants, including other SSRIs, paroxetine inhibits the hepatic cytochrome P450 enzyme CYP2D6. Inhibition of CYP2D6 may lead to increased plasma concentrations of co-administered medicinal products metabolised by this enzyme. These include certain tricyclic antidepressants (e.g. clomipramine, nortriptyline, and desipramine), phenothiazine neuroleptics (e.g. perphenazine and thioridazine, see section 4.3 and paragraph “Medicinal products that Prolong the QT Interval” in section 4.5 above), risperidone, atomoxetine, certain Type 1c antiarrhythmics (e.g. propafenone and flecainide) and metoprolol. It is not recommended to use paroxetine in combination with metoprolol when given in cardiac insufficiency, because of the narrow therapeutic index of metoprolol in this indication.

Pharmacokinetic interaction between CYP2D6 inhibitors and tamoxifen, showing a 65-75% reduction in plasma levels of one of the more active forms of tamoxifen, i.e. endoxifen, has been reported in the literature. Reduced efficacy of tamoxifen has been reported with concomitant usage of some SSRI antidepressants in some studies. As a reduced effect of tamoxifen cannot be excluded, co-administration with potent CYP2D6 inhibitors (including paroxetine) should whenever possible be avoided (see section 4.4).

Alcohol

As with other psychotropic medicinal products patients should be advised to avoid alcohol use while taking paroxetine.

Oral anticoagulants

A pharmacodynamic interaction between paroxetine and oral anticoagulants may occur. Concomitant use of paroxetine and oral anticoagulants can lead to an increased anticoagulant activity and haemorrhagic risk. Therefore, paroxetine should be used with caution in patients who are treated with oral anticoagulants (see section 4.4).

NSAIDs and acetylsalicylic acid, and other antiplatelet agents

A pharmacodynamic interaction between paroxetine and NSAIDs/acetylsalicylic acid may occur. Concomitant use of paroxetine and NSAIDs/acetylsalicylic acid can lead to an increased haemorrhagic risk (see section 4.4).

Caution is advised in patients taking SSRIs, concomitantly with oral anticoagulants, medicinal products known to affect platelet function or increase risk of bleeding (e.g. atypical antipsychotics such as clozapine, phenothiazines, most TCAs, acetylsalicylic acid, NSAIDs, COX-2 inhibitors) as well as in patients with a history of bleeding disorders or conditions that may predispose to bleeding.

Pravastatin

An interaction between paroxetine and pravastatin has been observed in studies suggesting that co-administration of paroxetine and pravastatin may lead to an increase in blood glucose levels. Patients with diabetes mellitus receiving both paroxetine and pravastatin may require dosage adjustment of oral hypoglycaemic agents and/or insulin (see section 4.4)

4.6. Fertility, pregnancy and lactation

Pregnancy

Some epidemiological studies suggest an increased risk of congenital malformations, particularly cardiovascular (e.g. ventricular and atrial septum defects) associated with the use of paroxetine during the first trimester. The mechanism is unknown. The data suggest that the risk of having an infant with a cardiovascular defect following maternal paroxetine exposure is less than 2/100 compared with an expected rate for such defects of approximately 1/100 in the general population.

Paroxetine should only be used during pregnancy when strictly indicated. The prescribing physician will need to weigh the option of alternative treatments in women who are pregnant or are planning to become pregnant. Abrupt discontinuation should be avoided during pregnancy (see section 4.2).

Observational data indicated an increased risk (less than 2-fold) of postpartum haemorrhage following SSRI/SNRI exposure within the month prior to birth (see sections 4.4 and 4.8).

Neonates should be observed if maternal use of paroxetine continues into the later stages of pregnancy, particularly the third trimester.

The following symptoms may occur in the neonate after maternal paroxetine use in later stages of pregnancy: respiratory distress, cyanosis, apnoea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycaemia, hypertonia, hypotonia, hyperreflexia, tremor, jitteriness, irritability, lethargy, constant crying, somnolence and difficulty in sleeping. These symptoms could be due to either serotonergic effects or withdrawal symptoms. In a majority of instances the complications begin immediately or soon (<24 hours) after delivery.

Epidemiological data have suggested that the use of SSRIs in pregnancy, particularly in late pregnancy, may have an increased risk of persistent pulmonary hypertension of the newborn (PPHN). The observed risk was approximately five cases per 1000 pregnancies. In the general population one to two cases of PPHN per 1000 pregnancies occur.

Animal studies showed reproductive toxicity, but did not indicate direct harmful effects with respect to pregnancy, embryonal/foetal development, parturition or postnatal development (see section 5.3).

Breast-feeding

Small amounts of paroxetine are excreted into breast milk. In published studies, serum concentrations in breast-fed infants were undetectable (<2 nanograms/mL) or very low (<4 nanograms/mL), and no signs of drug effects were observed in these infants. Since no effects are anticipated, breast-feeding can be considered.

Fertility

Animal data have shown that paroxetine may affect sperm quality (see section 5.3). In vitro data with human material may suggest some effect on sperm quality, however, human case reports with some SSRIs (including paroxetine) have shown that an effect on sperm quality appears to be reversible. Impact on human fertility has not been observed so far.

4.7. Effects on ability to drive and use machines

Clinical experience has shown that therapy with paroxetine is not associated with impairment of cognitive or psychomotor function. However, as with all psychoactive medicinal products, patients should be cautioned about their ability to drive a car and operate machinery.

Although paroxetine does not increase the mental and motor skill impairments caused by alcohol, the concomitant use of paroxetine and alcohol is not advised.

4.8. Undesirable effects

Some of the adverse drug reactions listed below may decrease in intensity and frequency with continued treatment and do not generally lead to cessation of therapy. Adverse drug reactions are listed below by system organ class and frequency. Frequencies are defined as: very common (≥ 1/10); common (≥ 1/100 to <1/10); uncommon (≥ 1/1,000 to <1/100); rare (≥ 1/10,000 to <1/1,000); very rare (<1/10,000); not known (cannot be estimated from the available data).

Blood and lymphatic system disorders

Uncommon: abnormal bleeding, predominantly of the skin and mucous membranes (including ecchymoisis and gynaecological bleeding), leukopenia. Very rare: thrombocytopenia.

Immune system disorders

Very rare: severe and potentially fatal allergic reactions (including anaphylactoid reactions and angioedema).

Endocrine disorders

Very rare: syndrome of inappropriate anti-diuretic hormone secretion (SIADH).

Metabolism and nutrition disorders

Common: increases in cholesterol levels, decreased appetite.

Uncommon: altered glycaemic control has been reported in diabetic patients (see section 4.4).

Rare: hyponatraemia.

Hyponatraemia has been reported predominantly in elderly patients and is sometimes due to syndrome of inappropriate anti-diuretic hormone secretion (SIADH).

Psychiatric disorders

Common: somnolence, insomnia, agitation, abnormal dreams (including nightmares).Uncommon: confusion, hallucinations.Rare: manic reactions, anxiety, depersonalisation, panic attacks, akathisia (see section 4.4).

Not known: suicidal ideation, suicidal behaviour, aggression, bruxism.

Cases of suicidal ideation and suicidal behaviour have been reported during paroxetine therapy or early after treatment discontinuation (see section 4.4).

Cases of aggression were observed in post marketing experience.

These symptoms may also be due to the underlying disease

Nervous system disorders

Common: dizziness, tremor, headache, concentration impaired. Uncommon: extrapyramidal disorders.

Rare: convulsions, restless legs syndrome (RLS).Very rare: serotonin syndrome (symptoms may include agitation, confusion, diaphoresis, hallucinations, hyperreflexia, myoclonus, shivering, tachycardia and tremor).

Reports of extrapyramidal disorder including oro-facial dystonia have been received in patients sometimes with underlying movement disorders or who were using neuroleptic medication.

Eye disorders

Common: blurred vision.Uncommon: mydriasis (see section 4.4). Very rare: acute glaucoma.

Ear and labyrinth disorders

Not known: tinnitus.

Cardiac disorders

Uncommon: sinus tachycardia.Rare: bradycardia.

Vascular disorders

Uncommon: transient increases or decreases in blood pressure, postural hypotension.

Transient increases or decreases of blood pressure have been reported following treatment with paroxetine, usually in patients with pre-existing hypertension or anxiety.

Respiratory, thoracic and mediastinal disorders

Common: yawning.

Gastrointestinal disorders

Very common: nausea.Common: constipation, diarrhoea, vomiting, dry mouth.Very rare: gastrointestinal bleeding.

Not known: colitis microscopic.

Hepato-biliary disorders

Rare: elevation of hepatic enzymes.Very rare: hepatic events (such as hepatitis, sometimes associated with jaundice and/or liver failure).

Elevation of hepatic enzymes have been reported. Post-marketing reports of hepatic events (such as hepatitis, sometimes associated with jaundice and/or liver failure) have also been received very rarely. Discontinuation of paroxetine should be considered if there is prolonged elevation of liver function test results.

Skin and subcutaneous tissue disorders

Common: sweating.Uncommon: skin rashes, pruritusVery rare: severe cutaneous adverse reactions (including erythema multiforme, Stevens-Johnson syndrome and toxic epidermal necrolysis), urticaria, photosensitivity reactions.

Musculoskeletal and connective tissue disorders

Rare: arthralgia, myalgia

Epidemiological studies, mainly conducted in patients 50 years of age and older, show an increased risk of bone fractures in patients receiving SSRIs and TCAs. The mechanism leading to this risk is unknown.

Renal and urinary disorders

Uncommon: urinary retention, urinary incontinence.

Reproductive system and breast disorders

Very common: sexual dysfunction.Rare: hyperprolactinaemia/galactorrhoea, menstrual disorders (including menorrhagia, metrorrhagia, amenorrhoea, menstruation delayed and menstruation irregular)Very rare: priapism.

Not known: postpartum haemorrhage

Postpartum haemorrhage has been reported for the therapeutic class of SSRIs/SNRIs (see sections 4.4 and 4.6).

General disorder and administration site conditions

Common: asthenia, body weight gainVery rare: peripheral oedema.

Withdrawal symptoms seen on discontinuation of paroxetine treatment

Common: dizziness, sensory disturbances, sleep disturbances, anxiety, headache.Uncommon: agitation, nausea, tremor, confusion, sweating, emotional instability, visual disturbances, palpitations, diarrhoea, irritability.

Discontinuation of paroxetine (particularly when abrupt) commonly leads to withdrawal symptoms. Dizziness, sensory disturbances (including paraesthesia, electric shock sensations and tinnitus), sleep disturbances (including intense dreams), agitation or anxiety, nausea, tremor, confusion, sweating, headache, diarrhoea, palpitations, emotional instability, irritability, and visual disturbances have been reported.

Generally, these events are mild to moderate and are self-limiting; however, in some patients they may be severe and/or prolonged. It is therefore advised that when paroxetine treatment is no longer required, gradual discontinuation by dose tapering should be carried out (see sections 4.2 and 4.4).

Adverse events from paediatric clinical trials

The following adverse events were observed:

Increased suicidal related behaviours (including suicide attempts and suicidal thoughts), self-harm behaviours and increased hostility. Suicidal thoughts and suicide attempts were mainly observed in clinical trials of adolescents with Major Depressive Disorder. Increased hostility occurred particularly in children with obsessive compulsive disorder, and especially in younger children less than 12 years of age.

Additional events that were seen are: decreased appetite, tremor, sweating, hyperkinesia, agitation, emotional lability (including crying and mood fluctuations), bleeding related adverse events, predominantly of the skin and mucous membranes.

Events seen after discontinuation/tapering of paroxetine are: emotional lability (including crying, mood fluctuations, self-harm, suicidal thoughts and attempted suicide), nervousness, dizziness, nausea and abdominal pain (see section 4.4).

See section 5.1 for more information on paediatric clinical trials.

Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme at: Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.

4.9. Overdose

Symptoms and Signs

A wide margin of safety is evident from available overdose information on paroxetine.

Experience of paroxetine in overdose has indicated that, in addition to those symptoms mentioned under section 4.8, fever and involuntary muscle contractions have been reported. Patients have generally recovered without serious sequelae even when doses of up to 2000 mg have been taken alone. Events such as coma or ECG changes have occasionally been reported and, very rarely with a fatal outcome, but generally when paroxetine was taken in conjunction with other psychotropic medicinal products, with or without alcohol.

Treatment

No specific antidote is known.

The treatment should consist of those general measures employed in the management of overdose with any antidepressant. Administration of 20-30 g activated charcoal may be considered if possible within a few hours after overdose intake to decrease absorption of paroxetine. Supportive care with frequent monitoring of vital signs and careful observation is indicated. Patient management should be as clinically indicated.

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