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Mucinex Fast-MaxSevere Congestion and Cough

Dosage form
TABLET, COATED
Labeler
Reckitt Benckiser LLC
Label updated
2026-05-19
Retrieved
2026-09-07
Active ingredients
DEXTROMETHORPHAN HYDROBROMIDE · GUAIFENESIN
View original label and images on DailyMed ↗
Label information

Drug Facts

유효 성분

Dextromethorphan HBr 10 mg
Guaifenesin 200 mg

성분·작용

Active ingredients (in each caplet) Purposes
Dextromethorphan HBr 10 mg Cough suppressant
Guaifenesin 200 mg Expectorant
Uses
  • helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive
  • temporarily relieves:
    • cough due to minor throat and bronchial irritation as may occur with the common cold or inhaled irritants
    • the intensity of coughing
    • the impulse to cough to help you get to sleep
    • nasal congestion due to a cold
Warnings

Do not use

  • 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.

Ask a doctor before use if you have

  • 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)

Label information

When using this product do not use more than directed

Stop use and ask a doctor if

  • nervousness, dizziness, or sleeplessness occur
  • symptoms do not get better within 7 days or occur with fever
  • cough comes back, or occurs with fever, rash, or headache that lasts. These could be signs of a serious condition.

Label information

If pregnant or breast-feeding,ask a health professional before use.

Label information

Keep out of reach of children.

In case of overdose, get medical help or contact a Poison Control Center right away.

Directions
  • 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
Other information
  • store at 20-25°C (68-77°F)
Inactive ingredients

aluminum, croscarmellose sodium, FD&C blue no. 2

aluminum lake, FD&C red no. 40 aluminum lake,
methacrylic acid and ethyl acrylate copolymer,
mica, microcrystalline cellulose, polyethylene glycol,
polysorbate 80, polyvinyl alcohol, povidone, sodium
bicarbonate, talc, titanium dioxide

Questions?

1-866-MUCINEX (1-866-682-4639)You may also report side effects to this phone number.

Label information

Dist. by: RB Health (US)
Parsippany, NJ 07054-0224

Principal Display Panel - 20 Caplet Blister Pack Carton

NDC 63824-157-20

[Image in the official label — see DailyMed source]

DailyMed Set ID: 3270f369-7a40-186d-e063-6394a90a8526 · Version 13
NDC: 72854-157