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Mucinex DM Maximum Strength
  • Professionals
  • FDA PI

Mucinex DM Maximum Strength

Generic name:guaifenesin and dextromethorphan hydrobromide
Dosage form: tablet, extended release
Drug class:Upper respiratory combinations

Medically reviewed by Drugs.com. Last updated on Apr 1, 2021.

Drug Facts

Active ingredients (in each extended-release bi-layer tablet)Purposes
Dextromethorphan HBr 60 mgCough suppressant
Guaifenesin 1200 mgExpectorant

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

Warnings

Do not use

  • for children under 12 years of age
  • 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

  • persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema
  • cough accompanied by too much phlegm (mucus)

When using this product

  • do not use more than directed

Stop use and ask a doctor if

  • cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. These could be signs of a serious illness.

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

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

Directions

  • do not crush, chew, or break tablet
  • take with a full glass of water
  • this product can be administered without regard for timing of meals
  • adults and children 12 years and older: 1 tablet every 12 hours; not more than 2 tablets in 24 hours
  • children under 12 years of age: do not use

Other information

  • store at 20-25°C (68-77°F)

Inactive ingredients

carbomer homopolymer ..