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Mucinex Fast-MaxSevere Congestion and Cough

Dosage form
SOLUTION
Labeler
Reckitt Benckiser LLC
Label updated
2026-05-13
Retrieved
2026-09-07
Active ingredients
DEXTROMETHORPHAN HYDROBROMIDE · GUAIFENESIN · PHENYLEPHRINE HYDROCHLORIDE
View original label and images on DailyMed ↗
Label information

Drug Facts

유효 성분

성분·작용

Active ingredients (in each 20 mL) Purposes
Dextromethorphan HBr 20 mg Cough suppressant
Guaifenesin 400 mg Expectorant
Phenylephrine HCl 10 mg Nasal decongestant
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
  • high blood pressure
  • thyroid disease
  • diabetes
  • 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 lasts more than 7 days, 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 6 doses in any 24-hour period
  • measure only with dosing cup provided
  • do not use dosing cup with other products
  • dose as follows or as directed by a doctor
  • adults and children 12 years of age and older: 20 mL in dosing cup provided every 4 hours
  • children under 12 years of age:
    do not use
Other information
  • each 20 mL contains: sodium 9 mg
  • store between 20-25°C (68-77°F)
  • do not refrigerate
Inactive ingredients

ammonium glycyrrhizate, anhydrous citric acid, edetate disodium, FD&C red no. 40, flavor, glycerin, propyl gallate, propylene glycol, purified water, sodium benzoate, sorbitol, sucralose, trisodium citrate dihydrate may contain this ingredient, xanthan gum

Questions?

1-866-MUCINEX (1-866-682-4639)

You may also report side effects to this phone number.

Label information

Dist. by: Reckitt Benckiser
Parsippany, NJ 07054-0224

PRINCIPAL DISPLAY PANEL - 180 mL Bottle Label

MAXIMUM STRENGTH

NDC 63824-540-66

Mucinex®

FAST-
MAX ®

SEVERE CONGESTION

& COUGH

Dextromethorphan HBr – Cough Suppressant

Guaifenesin – Expectorant

Phenylephrine HCl – Nasal Decongestant

  • Controls Cough
  • Relieves Nasal & Chest Congestion
  • Thins & Loosens Mucus

6 FL OZ (180 mL)

FOR AGES 12+

[Image in the official label — see DailyMed source]

[Image in the official label — see DailyMed source]

DailyMed Set ID: a25278bd-c3b9-4db3-b4f7-b395eb5f9177 · Version 10
NDC: 63824-540