Mucinex Fast-Max Cold and Flu
325 mg + 200 mg + 5 mg + 10 mg · Tablet, Film Coated
- Available without prescription
- Expectorant
- Active substance
- Acetaminophen, Guaifenesin, Phenylephrine Hydrochloride, and Dextromethorphan Hydrobromide
- Made by
- Reckitt Benckiser LLC
- Source
- Official label
Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.
At a glance
Quoted from the official label · 2026-05-13
Active ingredients (in each caplet) Purposes Acetaminophen 325 mg Pain reliever/fever reducer Dextromethorphan HBr 10 mg Cough suppressant Guaifenesin 200 mg Expectorant Phenylephrine HCl 5 mg Nasal decongestant
- Nasal congestion headache cough minor aches and pains sore throat sinus congestion and pressure temporarily reduces fever helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial…
Adults and children 12 years of age and over:: take 2 caplets every 4 hours
do not take more than 12 caplets in any 24-hour period
Full directions ↓With any other drug containing acetaminophen (prescription or nonprescription).
All warnings ↓- Sold without a prescription
- FDA enforcement reports list no ongoing recall, and none from the last two years, for this product code · checked 2026-10-02
Every line above is selected, not written, from the official label. Nothing is reworded. DailyMed
What it is for
temporarily relieves these common cold and flu symptoms:
- nasal congestion headache cough minor aches and pains sore throat sinus congestion and pressure temporarily reduces fever helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive
From the official label · 2026-05-13 · DailyMed
Do not take it if
- with any other drug containing acetaminophen (prescription or nonprescription).
- If you are not sure whether a drug contains acetaminophen,
- ask a doctor or pharmacist.
- if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug.
- If you do not know if your prescription drug contains an MAOI,
- ask a doctor or pharmacist before taking this product.
Quoted from the official label, section “OTC — Do Not Use”.
How to take it
These directions are for this exact strength and form. Another one is different.
- do not take more than directed (see Overdose warning )
- do not take more than 12 caplets in any 24-hour period
- adults and children 12 years of age and over:
- take 2 caplets every 4 hours
- children under 12 years of age:
- do not use
Quoted from the official label, section “Dosage & Administration”.
Ask a doctor first if
liver disease heart disease diabetes high blood pressure thyroid disease trouble urinating due to an enlarged prostate gland persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema cough that occurs with too much phlegm (mucus)
Quoted from the official label, section “OTC — Ask Doctor”.
Ask a pharmacist first if
you are taking the blood thinning drug warfarin
Quoted from the official label, section “OTC — Ask Doctor/Pharmacist”.
Stop and get help if
- nervousness, dizziness, or sleeplessness occur pain, nasal congestion, or cough gets worse or lasts more than 7 days fever gets worse or lasts more than 3 days redness or swelling is present new symptoms occur cough comes back, or occurs with fever, rash, or headache that lasts.
- These could be signs of a serious condition.
Quoted from the official label, section “OTC — Stop Use”.
Other warnings
- Liver warning This product contains acetaminophen.
- Severe liver damage may occur
- if you take:
- more than 12 caplets in 24 hours, which is the maximum daily amount with other drugs containing acetaminophen 3 or more alcoholic drinks daily while using this product Allergy alert Acetaminophen may cause severe skin reactions.
- Symptoms may include:
- skin reddening blisters rash If a skin reaction occurs,
- stop use and seek medical help right away.
- Sore throat warning If sore throat is severe, persists for more than 2 days, is accompanied or followed by fever, headache, rash, nausea, or vomiting, consult a doctor promptly.
- Do not use with any other drug containing acetaminophen (prescription or nonprescription).
- Ask a doctor before use
- if you have liver disease heart disease diabetes high blood pressure thyroid disease trouble urinating due to an enlarged prostate gland persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema cough that occurs with too much phlegm (mucus)
- Ask a doctor or pharmacist before use
- if you are taking the blood thinning drug warfarin
- When using this product
- do not use more than directed
- Stop use and
- ask a doctor if nervousness, dizziness, or sleeplessness occur pain, nasal congestion, or cough gets worse or lasts more than 7 days fever gets worse or lasts more than 3 days redness or swelling is present new symptoms occur cough comes back, or occurs with fever, rash, or headache that lasts.
- Keep out of reach of children.
- do not use more than directed
Quoted from the official label, section “Warnings”.
Pregnancy and breastfeeding
If pregnant or breast-feeding, ask a health professional before use.
Quoted from the official label, section “OTC — Pregnancy or Breast Feeding”.
If you take too much
In an emergency, call your local emergency number or a poison control centre.
- Overdose warning Taking more than the recommended dose (overdose) may cause liver damage.
- In case of overdose, get medical help or contact a Poison Control Center right away.
- Quick medical attention is critical for
- adults as well as for children even
- if you do not notice any signs or symptoms.
Quoted from the official label, section “Overdosage”.
How to store it
store between 20-25°C (68-77°F)
Quoted from the official label, section “Storage and Handling”.
What kind of medicine it is
Active ingredients (in each caplet) Purposes Acetaminophen 325 mg Pain reliever/fever reducer Dextromethorphan HBr 10 mg Cough suppressant Guaifenesin 200 mg Expectorant Phenylephrine HCl 5 mg Nasal decongestant
Quoted from the official label, section “OTC — Purpose”.
Other ingredients
Relevant if you react to a dye, a preservative, lactose or gluten.
corn starch, crospovidone, FD&C red no. 40 aluminum lake, FD&C yellow no. 6 aluminum lake, magnesium stearate, maltodextrin, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, povidone, silicon dioxide, sodium starch glycolate, stearic acid, talc, titanium dioxide
Quoted from the official label, section “Inactive Ingredients”.
Questions about this product
1-866-MUCINEX (1-866-682-4639) You may also report side effects to this phone number.
Quoted from the official label, section “OTC — Questions”.
Ingredients people check for
Lactose, gluten, dyes, sugars and other ingredients that matter with an allergy, intolerance or diet — as this product’s FDA label lists them.
- Colour dyes
FD&C red no. 40 aluminum lake; FD&C yellow no. 6 aluminum lake
Some people react to dyes such as tartrazine (Yellow 5) or carmine. - Titanium dioxide
titanium dioxide
A whitening agent no longer allowed in food in the EU (E171).
Quoted from the FDA label. A label that does not name an ingredient is not a guarantee that the product is free of it, and formulations change. With an allergy, check the pack and ask a pharmacist.
Details
| Made by | Reckitt Benckiser LLC |
|---|---|
| Active substance | Acetaminophen, Guaifenesin, Phenylephrine Hydrochloride, and Dextromethorphan Hydrobromide |
| Used in | Breathing, airways, allergies and cough |
| Strength | 325 mg + 200 mg + 5 mg + 10 mg |
| Form | Tablet, Film Coated |
| Route | Oral |
| Packs | 2 BLISTER PACK in 1 CARTON / 10 TABLET, FILM COATED in 1 BLISTER PACK |
| NDC | 63824-514 |
Source: NDC Directory · 2026-09-13 · not reviewed by a clinician
Source: US Food and Drug Administration, NDC Directory. Reuse terms: US government work (FDA).
Other strengths and forms
2 products are sold under this name. Grouped by form; a number on a strength means several companies make it.
- Tablet, Film Coated1 products
- 325 mg + 200 mg + 5 mg + 10 mg
- Tablet1 products