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Mucus Relief DM CoughMaximum Strength

Dosage form
TABLET, FILM COATED
Labeler
Cardinal Health 110, LLC. DBA Leader
Label updated
2026-08-21
Retrieved
2026-09-07
Active ingredients
DEXTROMETHORPHAN HYDROBROMIDE · GUAIFENESIN
View original label and images on DailyMed ↗
Active ingredients (in each immediate-release tablet)

Dextromethorphan HBr 20 mg
Guaifenesin 400 mg

Purpose

Cough suppressant
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 associated with the common cold
    • the intensity of coughing
    • the impulse to cough to help you get to sleep
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

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

When using this product

  do not exceed recommended dosage.

Stop use and ask a doctor if

cough persists more than 1 week, tends to recur, or is accompanied by a fever, rash, or persistent headache. These could be signs of a serious condition.

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 take more than directed
  • adults and children 12 years and over: 1 tablet every 4 hours. Do not take more than 6 tablets in 24 hours.
  • children under 12 years: do not use
Other information
  • TAMPER EVIDENT: DO NOT USE IF OUTER PACKAGE IS OPENED OR BLISTER IS TORN OR BROKEN
  • see end flap for expiration date and lot number
  • store at 25°C (77°F); excursions permitted between 15°-30°C (59°-86°F) 
Inactive ingredients

D&C yellow #10 aluminum lake, hypromellose, magnesium stearate, maltodextrin, microcrystalline cellulose, polyethylene glycol, povidone, silicon dioxide, sodium starch glycolate, stearic acid

Questions or comments?

1-800-426-9391

Principal display panel

LEADER

NDC 70000-0278-1

Maximum Strength 
Mucus Relief
DM Cough

Dextromethorphan HBr, 20 mg ι Guaifenesin, 400 mg
Cough Suppressant ι Expectorant

Controls Cough
Thins and Loosens Mucus

Immediate-Release
Tablets

24 TABLETS

ACTUAL SIZE

100% Money Back Guarantee

[Image in the official label — see DailyMed source]

DailyMed Set ID: 6304a581-9238-4539-b157-293fc05c173e · Version 17
NDC: 70000-0278