Patient info

Galpharm Flu-Max 4-In-One Relief powder for oral solution – patient leaflet, side effects, dosage

Contains active substance:

Patient leaflet - Galpharm Flu-max 4-in-one Relief powder for oral solution

1) What this medicine is and what it is used for This medicine contains:

  • paracetamol which is a pain reliever (analgesic) and helps reduce your temperature when you have a fever

    • guaifenesin which is an expectorant to help loosen phlegm
  • phenylephrine which is a decongestant to reduce swelling in the passages of the nose to help you breathe more easily

    • cetylpyridinium chloride which is an antibacterial, and relieves sore throats.

These sachets are used for the short term relief of the symptoms of colds and flu, including aches and pains, headache, blocked nose, tickly sore throat and chesty coughs.

2. What you need to know before you take this medicine Do not take this medicine if you:

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  • are allergic to paracetamol, guaifenesin, phenylephrine, cetylpyridinium chloride or any of the other ingredients of this medicine (listed in section 6)

    • have a serious heart condition or cardiovascular disorder(s)
    • have high blood pressure (hypertension)
    • have an overactive thyroid
    • have glaucoma
    • have difficulty passing urine
  • are taking antidepressant drugs called monoamine oxidase inhibitors (MAOI’s), or have taken them within the last 14 days - these are medicines such as phenelzine, isocarboxazid and tranylcypromine
  • are currently taking other decongestant drugs (e.g. ephedrine and xylometazoline) or stimulants (e.g. dexamfetamine).

Warnings and precautions:

Talk to your doctor or pharmacist before taking this medicine, if you

  • are pregnant or breastfeeding

  • suffer from kidney or liver problems, including alcoholic liver disease

  • have diabetes
  • have circulatory disorders such as a condition called Raynaud’s Phenomenon, which results from poor circulation in the fingers and toes
  • have angina
  • have an enlarged prostate gland, as this may cause more difficulty in passing urine
  • suffer from phenylketonuria, a rare, inherited metabolic disorder.

During treatment with this medicine, tell your doctor straight away if:

  • you have severe illnesses, including severe renal impairment or sepsis (when bacteria and their toxins circulate in the blood leading to organ damage), or you suffer from malnutrition, chronic alcoholism or if you are also taking flucloxacillin (an antibiotic). A serious condition called metabolic acidosis (a blood and fluid abnormality) has been reported in patients in these situations when paracetamol is used at regular doses for a prolonged period or when paracetamol is taken together with flucloxacillin. Symptoms of metabolic acidosis may include: serious breathing difficulties with deep rapid breathing, drowsiness, feeling sick (nausea) and being sick (vomiting).

Other medicines and Galpharm Flu-Max 4-in-One Relief powder for oral solution

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines, like

  • medicines to treat high cholesterol levels which reduce the amount of fat in the blood such as colestyramine
  • medicines to control feeling sick or being sick such as metoclopramide or domperidone
  • medicines called anti-coagulants, which are used to thin the blood such as warfarin or other coumarins – you may take occasional doses of paracetamol but should consult your doctor if you need to take it on a regular basis
  • barbiturates (for epilepsy or to help you sleep), such as phenobarbitones
  • tricyclic antidepressants such as imipramine, amitriptyline
  • medicines to treat heart or circulatory problems, or to lower blood pressure, (e.g. digoxin, guanethidine, reserpine, methyldopa)

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  • beta blockers (e.g. atenolol) or vasodilators (e.g. hydralazine)
  • phenothiazines used as sedatives (e.g. chlorpromazine, pericyazine and fluphenazine)
  • if you are going to have a general anaesthetic as this may cause changes in heart rhythm.
  • flucloxacillin (antibiotic), due to a serious risk of blood and fluid abnormality (called metabolic acidosis) that must have urgent treatment (see section 2).

Contains paracetamol.

Do not take with any other paracetamol-containing products. Other important information:

If you are taking medication or are under medical care, consult your doctor before using this medicine.

Long term use of this product is not recommended.

Information about some of the ingredients in this medicine:

Contains aspartame (E951), a source of phenylalanine equivalent to 20 mg per sachet. May be harmful for people with phenylketonuria.

Each sachet contains 117 mg sodium. To be taken into consideration by people on a controlled sodium diet.

3) How to take this medicine

Pour the contents of 1 sachet into a standard mug. Fill the mug to below the brim with approximately 250 ml (8 fluid oz) of hot, but not boiling, water. Stir until dissolved, and allow to cool to a drinkable temperature.

Adults, the elderly and children 16 years and over:

1 sachet every 4 to 6 hours, as necessary, up to a maximum of 4 sachets (4 doses) in any 24 hour period. Leave at least 4 to 6 hours between doses.

Do not give to children under 16 years of age.

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

Do not take for longer than 3 days unless advised by your doctor.

If you take more of this medicine than you should

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. Go to your nearest hospital casualty department. Take your medicine and this leaflet with you.

4) Possible side effects

Most people do not have any side effects while taking this medicine. However, if you experience any of the following side effects, or anything else unusual happens, stop taking

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the medicine immediately, and see your doctor or pharmacist.

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Rare side effects are:

  • allergic reactions such as skin rash

    • stomach upsets, diarrhoea
    • dizziness
    • tingling and coolness of the skin
    • difficulty sleeping (insomnia)
    • nervousness, tremors or convulsions
    • a rise in body temperature
  • a rise in blood pressure with headache, vomiting (being sick) and fast, slow or irregular heart beat (palpitations).

More rarely, the following side effects can happen:

  • you may become more prone to bleeding, bruising, fever and infections, such as sore throat and ulcers, due to changes in your blood.

Very rare cases of serious skin reactions have been reported.

Frequency “Not known” (frequency cannot be estimated from the available data): A serious condition that can make blood more acidic (called metabolic acidosis), in patients with severe illness using paracetamol (see section 2)

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.gov.uk/yellowcard.

By reporting side effects you can help provide more information on the safety of this medicine.

5) How to store this medicine

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the carton and sachet. The expiry date refers to the last day of that month.

Do not store above 25ºC.

6) Contents of the pack and other information

What this medicine contains

Each 4.1 g sachet of off-white powder, taken as a hot drink, contains the active ingredients: paracetamol 1000 mg, guaifenesin 200 mg, phenylephrine hydrochloride

12.2 mg and cetylpyridinium chloride 3 mg.

The other ingredients are: maltodextrin, citric acid (anhydrous), tartaric acid, sodium citrate, acesulfame potassium (E950), aspartame (E951), sucralose, powdered menthol flavour, lemon flavour and the colour curcumin (E100).

This product is available in pack sizes of 5 or 10 sachets.

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Marketing Authorisation holder and manufacturer is Wrafton Laboratories Limited, Braunton, Devon, EX33 2DL, UK.

Text Revised: January 2025

PL 12063/0108

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 12063/0108

MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Galpharm Flu-max 4-in-one Relief powder for oral solution

Active substance Cetylpyridinium chloride
Pharmaceutical form Sachets containing the drug product, an off-white powder.
Excipients Maltodextrin, Citric acid (Anhydrous), Tartaric acid, Sodium citrate, Acesulfame potassium E950, Aspartame E951, Powdered menthol flavour, Lemon flavour, Curcumin E100
Shelf life 24 months
Storage Do not store above 25°C.
Drug group (ATC) Paracetamol, combination excluding psycholeptics
Marketing authorisation PL 12063/0108 (first authorised 4 December 2024)
Marketing authorisation holder Wrafton Laboratories Limited (T/A Perrigo)

Sources: the MHRA product information (products.mhra.gov.uk). Contains public sector information licensed under the Open Government Licence v3.0.