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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Sudafed Mucus Relief Triple Action Cold & Flu 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 Guaifenesin, Paracetamol, Phenylephrine hydrochloride may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.

Active substance: Guaifenesin, Paracetamol, Phenylephrine hydrochloride

Equivalent medicines (same active substance, strength and form)

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

Possible side effects

not listed in this leaflet. You can also or toxic epidermal necrolysis) report side-effects directly via the Yellow Card Breathing problems and wheezing. These are more Scheme at www.mhra.gov.uk/yellowcard or search likely if you have experienced them before when MHRA Yellow Card in the Google Play or Apple taking other painkillers such as ibuprofen or aspirin AC K. Store. Unexplained bruising or bleeding (caused by low By reporting side-effects you can help provide more platelets in the blood) information on the safety of this medicine. Recurring fevers or infections (caused by low white blood cells which increases the likelihood

5.

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Severe stomach discomfort (caused by inflammation of the pancreas) Liver problems, which may appear as jaundice

Keep out of the sight and reach of children. Do not use this medicine after the expiry date which is stated on the carton and blister foil. The expiry date refers to the last day of the month.

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to breathe (anaphylaxis, angioedema)

Unusually fast pulse rate or a sensation of an unusually fast or irregular heartbeat

6.

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(tachycardia, palpitations).

of infections)

(yellowing of the eyes and skin), nausea and abdominal pain (hepatic dysfunction)

The following side effects may also occur. Tell your doctor or pharmacist if you get them. m Difficulty passing water (the frequency is : unknown but is more likely to occur in men with ! an enlarged prostate) @ Less serious allergic reaction including rashes,

Howto store your medicine

Do not store above 25°C.

What is in this medicine?

Each white, capsule-shaped tablet contains the active ingredients: paracetamol 250 mg, guaifenesin 100 mg and phenylephrine hydrochloride 5 mg. The other ingredients are: microcrystalline cellulose, stearic acid, povidone, hypromellose and polyethylene glycol. This product is available in a pack size of 8, 12 and 16 tablets. Not all pack sizes are marketed. Please turn over =>

7.

Who makes this medicine?

'The Marketing Authorisation holder and manufacturer is Wrafton Laboratories Limited, 'Braunton, Devon, EX33 2DL, UK. The distributor is McNeil Products Limited,

50-1 00 Holmers Farm Way, High Wycombe, Buckinghamshire, HP12 4EG, UK.

Text revised: May 2025. SUDAFED® is a registered trade mark.

FRONT

Laetus Pharma Code aligned to LHS

Frequently asked questions about Sudafed Mucus Relief Triple Action Cold & Flu Tablets

How do I take Sudafed Mucus Relief Triple Action Cold & Flu Tablets?

Sudafed Mucus Relief Triple Action Cold & Flu Tablets comes as tablet. 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 Sudafed Mucus Relief Triple Action Cold & Flu Tablets?

The active substance in Sudafed Mucus Relief Triple Action Cold & Flu Tablets is guaifenesin, paracetamol, phenylephrine hydrochloride.

Are there equivalent medicines to Sudafed Mucus Relief Triple Action Cold & Flu Tablets?

Medicines with the same active substance, strength and form include: Beechams All-In-One Tablets, Benylin Mucus Cough & Cold All in One Relief Tablets, Boots Mucus Cough & Cold Relief All in One 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 Sudafed Mucus Relief Triple Action Cold & Flu 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 Sudafed Mucus Relief Triple Action Cold & Flu 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.

  • Source: electronic medicines compendium (emc), Datapharm
  • Active substance: guaifenesin, paracetamol, phenylephrine hydrochloride
  • Official document: view the original leaflet on emc →
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: Guaifenesin (30 medicines), Guaifenesin, paracetamol, phenylephrine hydrochloride (13 medicines), Paracetamol (185 medicines), Phenylephrine hydrochloride (60 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

For the relief of symptoms associated with colds and flu, including aches and pains, headache, blocked nose and sore throat, chills and chesty cough.

4.2. Posology and method of administration

For oral use. Take tablets with water. Swallow whole, do not chew.

Adults, the Elderly and children aged 12 years and over:

Two tablets. Repeat every four hours as required. Do not take more than 8 tablets (4 doses) in any 24 hour period.

Do not give to children under 12 years, except on medical advice.

Do not take more medicine than the label tells you to.

4.3. Contraindications

Hypersensitivity to paracetamol or any of the other ingredients.

Hepatic or severe renal impairment, hypertension, hyperthyroidism, diabetes, heart disease or those taking tricyclic antidepressants or beta-blocking drugs and those patients who are taking or have taken, within the last two weeks, monoamine oxidase inhibitors (see section 4.5). Avoid in patients with prostatic enlargement.

Use in patients with glaucoma or urinary retention.

Use in patients who are currently receiving other sympathomimetic drugs.

Phaeochromocytoma.

Closed angle glaucoma.

4.4. Special warnings and precautions for use

The physician or pharmacist should check that sympathomimetic containing preparations are not simultaneously administered by several routes i.e. orally and topically (nasal, aural and eye preparations).

Care is advised in the administration of paracetamol to patients with severe renal or hepatic impairment. The hazards of overdose are greater in those with non-cirrhotic alcoholic liver disease.

Patients suffering from chronic cough or asthma should consult a physician before taking this product.

Patients should stop using the product and consult a health care professional if cough lasts for more than 5 days or comes back, or is accompanied by a fever, rash or persistent headache.

Do not take with a cough suppressant.

Medical advice should be sought before taking this product in patients with these conditions: An enlargement of the prostate gland

Occlusive vascular disease (e.g. Raynaud's Phenomenon) Cardiovascular disease

This product should not be used by patients taking other sympathomimetics (such as decongestants, appetite suppressants and amphetamine-like psychostimulants).

Concomitant use of other paracetamol-containing products should be avoided. If symptoms persist consult your doctor.

Use with caution in patients with circulatory disorders such as Raynaud's Phenomenon. Patients with prostatic hypertrophy may have increased difficulty with micturition.

Sympathomimetic-containing products may act as cerebral stimulants giving rise to insomnia, nervousness, hyperpyrexia, tremor and epileptiform convulsions.

Long term use of the product is not recommended.

Do not take more medicine than the label tells you to. If you do not get better, talk to your doctor.

Keep out of the sight and reach of children.

Do not take with any other flu, cold or decongestant products.

Contains paracetamol. Do not take anything else containing paracetamol while taking this medicine.

Talk to your 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.

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 and 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 underlying cause of HAGMA in patients with multiple risk factors.

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

PARACETAMOL

The speed of absorption of paracetamol may be increased by metoclopramide or domperidone and absorption reduced by colestyramine.

The anticoagulant 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. The hepato-toxicity of paracetamol may be potentiated by excessive intake of alcohol. Pharmacological interactions involving paracetamol with a number of other drugs have been reported. These are considered to be of unlikely clinical significance in acute use at the dosage regimen proposed.

Drugs which induce hepatic microsomal enzymes, such as alcohol, barbiturates, monoamine oxidase inhibitors and tricyclic antidepressants, may increase the hepatotoxicity of paracetamol particularly after overdosage. Contraindicated in patients currently receiving or within two weeks of stopping therapy with monoamine oxidase inhibitors because of a risk of hypertensive crisis.

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)

PHENYLEPHRINE HYDROCHLORIDE

Phenylephrine may adversely interact with other sympathomimetics, vasodilators and beta blockers.

Sympathomimetic-containing products should be used with great care in patients suffering from angina and in patients receiving phenothiazines or tricyclic antidepressants.

Sympathomimetic-containing products should be used in caution in patients receiving digitalis, beta-adrenergic blockers, guanethidine, reserpine, methyldopa or anti- hypertensive agents

Concurrent use with halogentated anaesthetic agents such as chloroform, cyclopropane, halothane, enflurane or isoflurane may provoke or worsen ventricular arrhythmias.

Phenylephrine should be used with caution in combination with the following drugs as interactions have been reported:

Monoamine oxidase inhibitors (including moclobemide)

Hypertensive interactions occur between sympathomimetic amines such as phenylephrine and monoamine oxidase inhibitors (see contraindications).

Sympathomimetic amines

Concomitant use of phenylephrine with other sympathomimetic amines can increase the risk of cardiovascular side effects.

Beta-blockers and other antihypertensives (including debrisoquine, guanethidine, reserpine, methyldopa)

Phenylephrine may reduce the efficacy of beta- blocking drugs and antihypertensive drugs.

The risk of hypertension and other cardiovascular side effects may be increased.

Tricyclic antidepressants

(e.g. amitriptyline)

May increase the risk of cardiovascular side effects with phenylephrine.

Ergot alkaloids

(ergotamine and methylsergide)

Increased risk of ergotism

Digoxin and cardiac glycosides

Increase the risk of irregular heartbeat or heart attack

If urine is collected within 24 hours of a dose of this product, a metabolite may cause a colour interference with laboratory determinations of 5 hydroxyindoleacetic acid (5- HIAA) and vanillymandelic acid (VMA).

4.6. Fertility, pregnancy and lactation

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.

This product should not be used during pregnancy without medical advice.

Paracetamol is excreted in breast milk but not in a clinically significant amount. This product should not be used whilst breast feeding without medical advice

GUAIFENESIN

The safety of guaifenesin in pregnancy and lactation has not been fully established but this constituent is not thought to be hazardous. However the product should only be used in pregnancy when considered essential by the doctor.

PHENYLEPHRINE HYDROCHLORIDE

Due to the vasconstrictive properties of Phenylephrine, the product should be used with caution in patients with a history of pre-eclampsia. Phenylephrine may reduce placental perfusion and the product should be used in pregnancy only if the benefits outweigh this risk. There is no information on use in lactation.

The safety of phenylephrine during pregnancy has not been established. Phenylephrine is excreted in breast milk but not in a clinically significant amount.

This product should not be used whilst breast feeding without medical advice.

4.7. Effects on ability to drive and use machines

None known.

Patients should be advised not to drive or operate machinery if affected by dizziness.

4.8. Undesirable effects

The active ingredients are usually well tolerated in normal use.

PARACETAMOL

Very rare cases of serious skin reactions have been reported.

Adverse events from historical clinical trial data are both infrequent and from small patient exposure. Events reported from extensive post-marketing experience at therapeutic/labelled dose and considered attributable are tabulated below by MedDRA System Organ Class. Due to limited clinical trial data, the frequency of these adverse events is not known (cannot be estimated from available data), but post-marketing experience indicates that adverse reactions to paracetamol are rare and serious reactions are very rare.

Body System

Undesirable effect

Blood and lymphatic system disorders

Thrombocytopenia

Agranulocytosis

These are not necessarily causally related to paracetamol

Immune system disorders

Anaphylaxis

Cutaneous hypersensitivity reactions including skin rashes, angioedema and Stevens Johnson syndrome, toxic epidermal necrolysis

Respiratory, thoracic and mediastinal disorders

Bronchospasm*

Hepatobiliary disorders

Hepatic dysfunction

Gastrointestinal disorders

Acute pancreatitis

Metabolism and nutrition disorders

High anion gap metabolic acidosis**

* There have been cases of bronchospasm with paracetamol, but these are more likely in asthmatics sensitive to aspirin or other NSAIDs.

** Frequency “Not known” (cannot be estimated from the available data)

Description of selected adverse reactions

High anion gap metabolic acidosis

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.

GUAIFENESIN

The frequency of these events is unknown but considered likely to be rare.

Body System

Undesirable effect

Immune system disorders

Allergic reactions, angioedema, anaphylactic reactions

Respiratory, thoracic and mediastinal disorders

Dyspnoea*

Gastrointestinal disorders

Nausea, vomiting, abdominal discomfort,

Skin and subcutaneous disorders

Rash, urticaria

PHENYLEPHRINE HYDROCHLORIDE

The following adverse events have been observed in clinical trials with phenylephrine and may therefore represent the most commonly occurring adverse events.

Body System

Undesirable effect

Psychiatric disorders

Nervousness, irritability, restlessness, and excitability

Nervous system disorders

Headache, dizziness, insomnia

Cardiac disorders

Increased blood pressure

Gastrointestinal disorders

Nausea, Vomiting, diarrhoea

Adverse reactions identified during post-marketing use are listed below. The frequency of these reactions is unknown but likely to be rare.

Eye disorders

Mydriasis, acute angle closure glaucoma, most likely to occur in those with closed angle glaucoma

Cardiac disorders

Tachycardia, palpitations

Skin and subcutaneous disorders

Allergic reactions (e.g. rash, urticaria, allergic dermatitis).

Hypersensitivity reactions including cross-sensitivity with other sympathomimetics may occur.

Renal and urinary disorders

Dysuria. Urinary retention. This is more likely to occur in men with an enlarged prostate.

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: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.

4.9. Overdose

PARACETAMOL

Liver damage is possible in adults who have taken 10 g or more of paracetamol. Ingestion of 5 g or more of paracetamol may lead to liver damage if the patient has risk factors (see below).

Risk Factors

If the patient

a) is on long term treatment with carbamazepine, phenobarbital, phenytoin, primidone, rifampicin, St John's Wort or other drugs that induce liver enzymes.

or

b) Regularly consumes ethanol in excess of recommended amounts.

or

c) Is likely to be glutathione deplete e.g. eating disorders, cystic fibrosis, HIV infection, starvation, cachexia.

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 overdose. 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 accordance with established treatment guidelines, see British National Formulary (BNF) overdose section.

Treatment with activated charcoal should be considered if the overdose has been taken within one hour. Plasma paracetamol concentration should be measured at four hours or later after ingestion (earlier concentrations are unreliable). Treatment with N-acetylcysteine, may be used up to 24 hours after ingestion of paracetamol, however, the maximum protective effect is obtained up to eight hours post-ingestion.

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 24 hours from ingestion should be discussed with the National Poisons Information Service (NPIS) or a liver unit.

GUAIFENESIN

Symptoms and signs

Very large doses of guaifenesin can cause nausea and vomiting.

Treatment

Vomiting should be treated by fluid replacement and monitoring of electrolytes if indicated.

PHENYLEPHRINE HYDROCHLORIDE

Symptoms and signs

Phenylephrine overdosage is likely to result in effects similar to those listed under adverse reactions. Additional symptoms may include hypertension and possibly reflux bradycardia. In severe cases confusion, hallucinations, seizures and arrhythmias may occur. However the amount required to produce serious phenylephrine toxicity would be greater than required to cause paracetamol-related toxicity.

Treatment

Treatment should be as clinically appropriate. Severe hypertension may need to be treated with an alpha blocking drug such as phentolamine.

💬 Ask about this leaflet

Ask anything about Sudafed Mucus Relief Triple Action Cold & Flu 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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