Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
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 Codeine phosphate hemihydrate, Paracetamol may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.
Most people will not have problems, but some people may have side effects when taking this medicine. If you have any unwanted side effects you should seek advice from your doctor, pharmacist or other healthcare professional.
CIf you get any of these serious side effects, stop taking the tablets. See a doctor at once:
•Difficulty in breathing, swelling of the face, neck, tongue or throat or shortness of breath (severe allergic reactions) 31058824
this medicine including herbal and homeopathic remedies. Keep this medicine out of the sight and reach of children. AHow to take this medicine Store this medicine in a safe and secure storage Always take this medicine exactly as your doctor space, where other people cannot access it. It can or pharmacist has told you. Check with your cause serious harm and be fatal to people when it doctor or pharmacist if you are not sure. has not been intended for them. Store in the Check the foil is not broken before first use. If it original package. Use by the date on the end flap of is, do not take that tablet. the carton. Age How many How often to take What is in this medicine to take Each tablet contains Codeine Phosphate Adults Two Up to 4 times a day but not Hemihydrate 12.8mg, Paracetamol 500mg, which more often than every 4 hours. are the active ingredients. Don't take more than As well as the active ingredients, the tablets also 8 tablets in any 24 hours. contain maize starch, microcrystalline cellulose, Children: One to two Up to 4 times a day but not magnesium stearate, sodium metabisulphite 16 to 18 more often than every 6 hours. (E223). years of age Don't take more than This pack contains 24 or 30 white, pillow shaped 8 tablets in any 24 hours. tablets, with the letter 'M' on one side. Not all pack Children: One Up to 4 times a day but not sizes may be marketed. 12 to 15 more often than every 6 hours. years of age Don't take more than Who makes this medicine 4 tablets in any 24 hours. Manufactured for the Marketing Authorisation holder For the elderly, a reduced dose or dosing less The Boots Company PLC Nottingham NG2 3AA often may be required. by Famar AVE Anthoussa Attiki 15349 Greece. Swallow each tablet whole with water. Do not take for more than 3 days. Leaflet prepared April 2026. Paracetamol and Codeine 500mg/12.8mg If you would like any further information about this Tablets should be used for 3 days only to relieve medicine, please contact The Boots Company symptoms. If no effective pain relief is achieved PLC Nottingham NG2 3AA. while taking the medicine, you should seek the advice of a healthcare professional. Other formats Do not give to children under 12 years, due to To request a copy of this leaflet in Braille, large print the risk of severe breathing problems. or audio please call, free of charge: 0800 198 5000 Do not take more medicine than the table tells (UK only) you to. Please be ready to give the following information: If you do not get better, talk to your doctor. Product name: Paracetamol and Codeine If your symptoms continue or your headache 500mg/12.8mg Tablets becomes persistent, see your doctor. Reference number: 00014/0865 CIf you take too many tablets: This is a service provided by the Royal National Talk to a doctor at once if you take too much of Institute of Blind people. this medicine even if you feel well. This is because too much paracetamol can cause delayed, serious liver damage. Go to your nearest hospital casualty department. Take your medicine and this leaflet with you.
Possible withdrawal effects when stopping treatment
This medicine contains codeine and can cause addiction if you take it continuously for more than 3 days. When you stop taking it you may get withdrawal symptoms. You should talk to your doctor or pharmacist if you think you are suffering from withdrawal symptoms.
Paracetamol and Codeine 500 mg/ 12.8 mg Tablets comes as tablet containing 500mg / 12.8mg. Always follow the dose your doctor or pharmacist has given you, and read the leaflet that comes with the medicine.
The active substance in Paracetamol and Codeine 500 mg/ 12.8 mg Tablets is codeine phosphate hemihydrate, paracetamol.
This leaflet reproduces the patient information leaflet approved for Paracetamol and Codeine 500 mg/ 12.8 mg Tablets, as published on the electronic medicines compendium (emc). The version printed inside your medicine’s packaging is the one that applies to you.
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.
The text above reproduces the patient information leaflet approved for this medicine, restructured for easier reading.
Paracetamol and Codeine 500mg/12.8mg Tablets are indicated in patients older than 12 years of age for the treatment of acute moderate pain which is not considered to be relieved by other analgesics such as paracetamol, ibuprofen or aspirin (alone).
This medicine is recommended for the relief of migraine, headache, dental pain, period pain, backache, arthritic & rheumatic pain, strains & sprains and sciatica.
Adults Two tablets up to 4 times a day. This dose should not be repeated more frequently than every 4 hours, and not more than 4 doses (8 tablets) should be taken in any 24 hour period. Do not take for more than 3 days without consulting a doctor.
Paediatric population:
Children aged 16 years to 18 years
One to Two tablets up to 4 times a day. This dose should not be repeated more frequently than every 6 hours, and not more than 4 doses (8 tablets) should be taken in any 24 hour period. Do not take for more than 3 days without consulting a doctor.
Children aged 12 years to 15 years
One tablet up to 4 times a day. This dose should not be repeated more frequently than every 6 hours and not more than 4 doses (4 tablets) should be taken in any in 24 hours period. Do not take for more than 3 days without consulting a doctor.
Children aged less than 12 years
Codeine should not be used in children below the age of 12 years because of the risk of opioid toxicity due to the variable and unpredictable metabolism of codeine to morphine (see sections 4.3 and 4.4).
Elderly
In the elderly, the rate and extent of paracetamol absorption is normal, but plasma half-life is longer, and paracetamol clearance is lower than in young adults. Elderly patients may require a reduced dose or frequency of dosing.
For oral administration only.
Treatment goals and discontinuation
Before initiating treatment with Paracetamol and Codeine 500 mg/ 12.8 mg Tablets, treatment duration and treatment goals, should be agreed together with the patient, in accordance with pain management guidelines.
Duration of treatment
Do not take for more than 3 days continuously without medical review. The duration of treatment should be as short as possible, and if no effective pain relief is achieved the patients/carers should be advised to seek the views of a healthcare professional.
Hypersensitivity to paracetamol, codeine, opioid analgesics or any of the other constituents.
In all paediatric patients (0-18 years of age) who undergo tonsillectomy and/or adenoidectomy for obstructive sleep apnoea syndrome due to an increased risk of developing serious and life threatening adverse reactions (see section 4.4).
In women during breastfeeding (see section 4.6).
In patients for whom it is known they are CYP2D6 ultra-rapid metabolisers.
Do not give to children under 12 years of age (see section 4.4)
In patients with respiratory depression, chronic constipation or raised intracranial pressure.
Care is advised in the administration of paracetamol to patients with renal or hepatic impairment. The hazard of overdose is greater in those with non-cirrhotic alcoholic liver disease.
Do not exceed the stated dose.
Patients should be advised to consult their doctor if their headaches become persistent.
Patients should be advised not to take other paracetamol or codeine-containing products concurrently.
If symptoms persist consult your doctor. Keep out of the reach and sight of children.
Patients with inflammatory or obstructive bowel disorders or acute abdominal conditions should consult a doctor before using this product.
Patients with a history of cholecystectomy should consult a doctor before using this product as it may cause acute pancreatitis in some patients.
Not recommended for use in children in whom respiratory function might be compromised as this may worsen the symptoms of morphine toxicity.
The label will state:
Talk to a doctor at once if you take too much of this medicine, even if you feel well.
Do not take more medicine than the label tells you to.
If you do not get better, talk to your doctor.
Keep all medicines out of the sight and reach of children.
Do not take anything else containing paracetamol while taking this medicine.
Front of pack
• Can cause addiction
• Contains opioid
• For three days use only
Back of pack
• This medicine is for the short term treatment of acute moderate pain when other painkillers have not worked. Wait at least four hours after taking any other painkiller before you take this medicine.
• List of indications as agreed in 4.1 of the SPC
• If you need to take this medicine continuously for more than 3 days you must speak to your doctor or pharmacist for advice
• This medicine contains codeine which can cause addiction if you take it continuously for more than 3 days. If you take this medicine for headaches for more than 3 days it can make them worse
The leaflet (or combined label/leaflet) will state:
Talk to a doctor at once if you take too much of this medicine, even if you feel well. This is because too much paracetamol can cause delayed, serious liver damage.
'Headlines' section (to be prominently displayed)
• This medicine can only be used for.....(indications)
• This medicine is for the short term treatment of acute moderate pain when other painkillers have not worked
• You should only take this product for a maximum of 3 days at a time. If you need to take it for longer than 3 days you should see your doctor or pharmacist for advice
• This medicine contains codeine which can cause addiction if you take it continuously for more than 3 days. This can give you withdrawal symptoms from the medicine when you stop taking it
• If you take this medicine for headaches for more than 3 days it can make them worse
'What this medicine is for' section
• Succinct description of the indications from 4.1 of the SPC
'Before you take this medicine' section
• This medicine contains codeine which can cause addiction if you take it continuously for more than 3 days. This can give you withdrawal symptoms from the medicine when you stop taking it
• If you take a painkiller for headaches for more than 3 days it can make them worse
'How to take this medicine' section
• Do not take for more than 3 days. Paracetamol and Codeine 500 mg/ 12.8 mg Tablets should be used for 3 days only to relieve symptoms. If no effective pain relief is achieved while taking the medicine, you should seek the advice of a healthcare professional
• This medicine contains codeine and can cause addiction if you take it continuously for more than 3 days. When you stop taking it you may get withdrawal symptoms. You should talk to your doctor or pharmacist if you think you are suffering from withdrawal symptoms
'Possible side effects' section
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: www.mhra.go.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 do I know if I am addicted?' section
If you take the medicine according to the instructions on the pack it is unlikely that you will become addicted to the medicine. However, if the following apply to you it is important that you talk to you doctor:
• You need to take the medicine for longer periods of time
• You need to take more than the recommended amount
• When you stop taking the medicine you feel very unwell but you feel better if you start taking the medicine again
Codeine
Sleep-related breathing disorders
Opioids can cause sleep-related breathing disorders including central sleep apnoea (CSA) and sleep-related hypoxemia. Opioid use increases the risk of CSA in a dose‑dependent fashion. In patients who present with CSA, consider decreasing the total opioid dosage.
Hyperalgesia
As with other opioids, in case of insufficient pain control in response to an increased dose of codeine, the possibility of opioid-induced hyperalgesia should be considered. A dose reduction or treatment review may be indicated.
Hepatobiliary disorders
Codeine may cause dysfunction and spasm of the sphincter of Oddi, thus increasing the risk of biliary tract symptoms and pancreatitis. Therefore, codeine/paracetamol has to be administered with caution in patients with pancreatitis and diseases of the biliary tract.
CYP2D6 metabolism
Codeine is metabolised by the liver enzyme CYP2D6 into morphine, its active metabolite. If a patient has a deficiency or is completely lacking this enzyme an adequate analgesic effect will not be obtained. Estimates indicate that up to 7% of the Caucasian population may have this deficiency. However, if the patient is an extensive or ultra-rapid metaboliser there is an increased risk of developing side effects of opioid toxicity even at commonly prescribed doses. These patients convert codeine into morphine rapidly resulting in higher than expected serum morphine levels.
General symptoms of opioid toxicity include confusion, somnolence, shallow breathing, small pupils, nausea, vomiting, constipation and lack of appetite. In severe cases this may include symptoms of circulatory and respiratory depression, which may be life threatening and very rarely fatal. Estimates of prevalence of ultra-rapid metabolisers in different populations are summarised below:
Population
African/Ethiopian
African American
Asian
Caucasian
Greek
Hungarian
Northern European
Prevalence %
29%
3.4% to 6.5%
1.2% to 2%
3.6% to 6.5%
6.0%
1.9%
1% to 2%
Post operative use in children
There have been reports in the published literature that codeine given post-operatively in children after tonsillectomy and/or adenoidectomy for obstructive sleep apnoea, led to rare, but life threatening adverse events including death (see also section 4.3). All children received doses of codeine that were within the appropriate dose range; however there was evidence that these children were either ultra-rapid or extensive metabolisers in their ability to metabolise codeine to morphine.
Children with compromised respiratory function
Codeine is not recommended for use in children in whom respiratory function might be compromised including neuromuscular disorders, severe cardiac or respiratory conditions, upper respiratory or lung infections, multiple trauma or extensive surgical procedures. These factors may worsen symptoms of morphine toxicity.
Tolerance and opioid use disorder (abuse and dependence)
Tolerance, physical and psychological dependence, and opioid use disorder (OUD) may develop upon repeated administration of opioids such as Paracetamol and Codeine 500 mg/ 12.8 mg Tablets. Repeated use of Paracetamol and Codeine 500 mg/ 12.8 mg Tablets can lead to OUD. A higher dose and longer duration of opioid treatment can increase the risk of developing OUD. Abuse or intentional misuse of Paracetamol and Codeine 500 mg/ 12.8 mg Tablets may result in overdose and/or death. The risk of developing OUD is increased in patients with a personal or a family history (parents or siblings) of substance use disorders (including alcohol use disorder), in current tobacco users or in patients with a personal history of other mental health disorders (e.g. major depression, anxiety and personality disorders).
The patient should be made aware of the risks and signs of OUD as set out in the package leaflet. If these signs occur, patients should contact their physician.
For patients who experience signs and symptoms of OUD, and/or exhibit drug seeking behaviours, review of concomitant opioids and psycho-active drugs (like benzodiazepines) and consultation with an addiction specialist may be required.
Codeine should be used with caution in patients with:
• head injuries
• prostatic hypertrophy
• hypotension
• hypothyroidism
• Addison's disease
• myasthenia gravis
Caution should be used in patients with conditions which may be exacerbated by opioids, including the elderly, who may be sensitive to their respiratory depressant effects.
As with other opioids, codeine should be used with caution in patients taking benzodiazepines or other central nervous system (CNS) depressants, including alcohol, and in patients taking monoamine oxidase inhibitors (MAOIs) or within 14 days of stopping MAOIs (see section 4.5).
Paracetamol
Cases of high anion gap metabolic acidosis (HAGMA) due to pyroglutamic acidosis have been reported in patients with severe illness such as severe renal impairment and sepsis, or in patients with malnutrition or other sources of glutathione deficiency (e.g. chronic alcoholism) who were treated with paracetamol at therapeutic dose for a prolonged period or a combination of paracetamol and flucloxacillin. If HAGMA due to pyroglutamic acidosis is suspected, prompt discontinuation of paracetamol and close monitoring is recommended. The measurement of urinary 5-oxoproline may be useful to identify pyroglutamic acidosis as the underlying cause of HAGMA in patients with multiple risk factors.
Glutathione deficiency can also increase the risk of hepatotoxicity with paracetamol use, even at therapeutic doses. Caution is advised for patients at risk of glutathione depletion (see section 4.9).
Hepatotoxicity at therapeutic dose
Cases of paracetamol induced hepatotoxicity, including fatal cases, have been reported in patients taking paracetamol at doses within the therapeutic range. These cases were reported in patients with one or more risk factors for hepatotoxicity including low body weight (adults <50 kg), renal and hepatic impairment, chronic alcoholism, concomitant intake of hepatotoxic drugs and in acute and chronic malnutrition (low reserves of hepatic glutathione). Paracetamol should be administered with caution to patients with these risk factors. Caution is also advised in patients on concomitant treatment with drugs that induce hepatic enzymes and in conditions which may predispose to glutathione deficiency (see section 4.9).
Dosage adjustment of paracetamol should be considered where there are risk factors for glutathione deficiency or hepatotoxicity and for those of low weight (for adults weighing less than 50kg).
Information about some of the ingredients in this medicine
This medicine contains sodium metabisulphite (E223) which may rarely cause severe hypersensitivity reactions and bronchospasm.
This medicine contains less than 1 mmol sodium (23 mg) per tablet, that is to say essentially 'sodium-free'.
Paracetamol
The speed of absorption of paracetamol may be increased by metoclopramide or domperidone and absorption reduced by colestyramine.
The anticoagulation effect of warfarin and other coumarins may be enhanced by prolonged regular use of paracetamol with increased risk of bleeding; occasional doses have no significant effect.
Alcohol and drugs which induce hepatic microsomal enzymes e.g. antiepileptic drugs, may increase the hepatotoxicity of paracetamol, particularly after overdose.
Caution should be taken when paracetamol is used concomitantly with flucloxacillin as concurrent intake has been associated with high anion gap metabolic acidosis due to pyroglutamic acidosis, especially in patients with risk factors (see section 4.4).
Codeine
Codeine may antagonise the effects of metoclopramide and domperidone on gastrointestinal motility.
The effect of CNS depressants (including alcohol general anaesthetics and centrally acting muscle relaxants, hypnotics, sedatives including benzodiazepines, tricyclic antidepressants antipsychotics (including phenothiazines) may be potentiated by codeine and may cause additive CNS and respiratory depression and hypotensive effects.
The concomitant use of Paracetamol and Codeine 500 mg/ 12.8 mg Tablets with gabapentinoids (gabapentin and pregabalin) may result in respiratory depression, hypotension, profound sedation, coma or death.
Opioid analgesics should be given with care to patients receiving monoamine oxidase inhibitors. MAOIs taken with pethidine have been associated with severe CNS excitation or depression (including hypertension or hypotension). Although this has not been documented with codeine, it is possible that a similar interaction may occur and therefore the use of codeine should be avoided while the patient is taking MAOIs and for 2 weeks after MAOI discontinuation.
Pregnancy
Use during pregnancy should be avoided, unless advised by a physician. This includes maternal use during labour because of the potential for respiratory depression in the neonate.
The safety of paracetamol-codeine during pregnancy has not been established relative to the possible adverse effects of fetal development.
CodeineThere is inadequate evidence of the safety of codeine in human pregnancy. A possible association with respiratory and cardiac malformation has been reported following first trimester exposure to codeine. Regular use during pregnancy may cause physical dependence in the fetus leading to withdrawal symptoms in the neonate.Administration of codeine during labour may depress respiration in the neonate.Opioid analgesics may cause gastric stasis during labour, increasing the risk of inhalation pneumonia in the mother.
Paracetamol. A large amount of data on pregnant women indicate neither malformative nor feto/neonatal toxicity.Epidemiological studies on neurodevelopment in children exposed to paracetamol in utero show inconclusive results. If clinically needed, paracetamol can be used during pregnancy however it should be used at the lowest effective dose for the shortest possible time and at the lowest possible frequency.
Breast-feeding
Codeine
Codeine must not be used during breastfeeding (see section 4.3). At normal therapeutic doses codeine and its active metabolites may be present in breast milk at very low doses and is unlikely to adversely affect the breast fed infant.
However, if the patient is an ultra-rapid metaboliser of CYP2D6, higher levels of the active metabolite, morphine, may be present in breast milk and on very rare occasions may result in symptoms of opioid toxicity in the infant, which may be fatal.
ParacetamolParacetamol is excreted in breast milk but not in a clinically significant amount.
Fertility
There is no information relating to the effects of codeine/paracetamol on fertility.
Patients should be advised not to drive or operate machinery if affected by dizziness or sedation.
This medicine can impair cognitive function and can affect a patient's ability to drive safely. This class of medicine is in the list of drugs included in regulations under 5a of the Road Traffic Act 1988. When prescribing this medicine, patients should be told:
• The medicine is likely to affect your ability to drive
• Do not drive until you know how the medicine affects you
• It is an offence to drive while under the influence of this medicine
• However, you would not be committing an offence (called a 'statutory defence') if:
- The medicine has been prescribed to treat a medical or dental problem and
- You have taken it according to the instructions given by the prescriber and in the information provided with the medicine and
- It was not affecting your ability to drive safely
Adverse events from historical clinical trial data are both infrequent and from small patient exposure. Accordingly, events reported from extensive post-marketing experience at therapeutic/labelled dose and considered attributable are tabulated below by system. The following convention has been utilised for the classification of undesirable effects: Very common (≥1/10), common (≥1/100 to, <1/10), uncommon (≥1/1,000, to <1/100), rare (≥1/10,000 to, <1/1000), very rare (<1/10,000), not known (cannot be estimated from the available data).
Paracetamol
Body System
Undesirable effect
Frequency
Blood and lymphatic system disorders
Thrombocytopenia
Agranulocytosis
Not known
Immune system disorders
Anaphylaxis
Cutaneous hypersensitivity reactions including skin rashes and angioedema.
Not known
Skin and subcutaneous tissue disorders
Serious skin reactions
Very rare
Respiratory, thoracic and mediastinal disorders
Bronchospasm*
Not known
Hepatobiliary disorders
Hepatic dysfunction
Not known
Metabolism and nutrition disorders
High anion gap metabolic acidosis**
Not known
* There have been cases of bronchospasm with paracetamol, but these are more likely in asthmatics sensitive to aspirin or other NSAIDs.
** Cases of high anion gap metabolic acidosis due to pyroglutamic acidosis have been observed in patients with risk factors using paracetamol (see section 4.4). Pyroglutamic acidosis may occur as a consequence of low glutathione levels in these patients.
Codeine
Adverse reactions identified during post-marketing use are listed below by MedDRA system organ class.
Body System
Undesirable effect
Frequency
Psychiatric disorders
Drug dependency* can occur after prolonged use of codeine at higher doses
Not known
Gastrointestinal disorder
Constipation, nausea, vomiting, dyspepsia, dry mouth, pancreatitis, acute pancreatitis in patients with a history of cholecystectomy
Not known
Hepatobiliary disorders
Sphincter of Oddi dysfunction
Not known
Nervous system disorder
Dizziness, worsening of headache with prolonged use, drowsiness
Not known
Skin and subcutaneous tissue disorder
Pruritus, sweating
Not known
* Repeated use of Paracetamol and Codeine 500 mg/ 12.8 mg Tablets can lead to drug dependence, even at therapeutic doses. The risk of drug dependence may vary depending on a patient's individual risk factors, dosage, and duration of opioid treatment (see section 4.4).
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 professional are asked to report any suspected adverse reactions via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App store.
Overuse of this product, defined as consumption of quantities in excess of the recommended dose, or consumption for a prolonged period of time may lead to physical or psychological dependency. Symptoms of restlessness and irritability may result when treatment is stopped.
Paracetamol
Liver damage is possible in patients who have taken more than recommended doses of paracetamol.
Ingestion of paracetamol at therapeutic doses may lead to liver damage if the patient has risk factors:-
Risk Factors:
If the patient
• Is on long-term treatment with drugs that induce liver enzymes.
Or
• Regularly consumes ethanol in excess of recommended amounts.
Or
• Is likely to be glutathione deplete e.g. diet (malnutrition, fasting, dietary restrictions, eating disorders and starvation), catabolic states (sepsis), cachexia and chronic illness (cystic fibrosis, liver disease, HIV, and muscular dystrophy).
Symptoms
Symptoms of paracetamol overdosage in the first 24 hours are pallor, nausea, vomiting, anorexia and abdominal pain. Liver damage may become apparent 12 to 48 hours after ingestion. Abnormalities of glucose metabolism and metabolic acidosis may occur. In severe poisoning, hepatic failure may progress to encephalopathy, haemorrhage, hypoglycaemia, cerebral oedema and death. Acute renal failure with acute tubular necrosis, strongly suggested by loin pain, haematuria and proteinuria, may develop even in the absence of severe liver damage. Cardiac arrhythmias and pancreatitis have been reported.
Management
Immediate treatment is essential in the management of paracetamol overdosage. Despite a lack of significant early symptoms, patients should be referred to hospital urgently for immediate medical attention. Symptoms may be limited to nausea or vomiting and may not reflect the severity of overdose or the risk of organ damage. Management should be in accordance with established treatment guidelines, see BNF overdose section.
Treatment with activated charcoal should be considered if the overdose has been taken within 1 hour. Plasma paracetamol concentration should be measured at 4 hours or later after ingestion (earlier concentrations are unreliable) but results should not delay initiation of treatment beyond 8 hours after ingestion, as the effectiveness of the antidote declines sharply after this time. If required the patient should be given intravenous N-acetylcysteine, in line with the established dosage schedule. If vomiting is not a problem, oral methionine may be a suitable alternative for remote areas, outside hospital. Management of patients who present with serious hepatic dysfunction beyond 24h from ingestion should be discussed with the NPIS or a liver unit.
Codeine
The effects of codeine in overdosage will be potentiated by simultaneous ingestion of alcohol and psychotropic drugs.
Symptoms
Central nervous system depression, including respiratory depression, may develop but is unlikely to be severe unless other sedative agents have been co-ingested, including alcohol, or the overdose is very large. The pupils may be pin-point in size; nausea and vomiting are common. Hypotension and tachycardia are possible but unlikely.
Management
Management should include general symptomatic and supportive measures including a clear airway and monitoring of vital signs until stable. Consider activated charcoal if an adult presents within one hour of ingestion of more than 350mg or a child more than 5mg/kg.
Give naloxone if coma or respiratory depression is present. Naloxone is a competitive antagonist and has a short half-life so large and repeated doses may be required in a seriously poisoned patient. Observe for at least 4 hours after ingestion.
Medicines sold in Romania with the same active substance: Cunoscut în România ca
Same active substance. The strength, the form and whether you need a prescription can differ. Always ask a pharmacist before you switch. Romanian medicines in the UK →
Medicines sold in Poland with the same active substance: W Polsce znany jako
Same active substance. The strength, the form and whether you need a prescription can differ. Always ask a pharmacist before you switch. Polish medicines in the UK →
Ask anything about Paracetamol and Codeine 500 mg/ 12.8 mg Tablets. The assistant answers only from this leaflet — if the leaflet does not cover it, it will say so. It does not give medical advice.
Answers come from the patient leaflet published on the electronic medicines compendium (emc). They are not medical advice. Ask a pharmacist or your GP if you are unsure. For urgent help call NHS 111, or 999 in an emergency.
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