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Dextromethorphan, guaifenesin, and pseudoephedrine
  • Treatments
  • Cough and Nasal Congestion

Dextromethorphan, guaifenesin, and pseudoephedrine

Generic name: dextromethorphan, guaifenesin, and pseudoephedrine [ dex-troe-meth-OR-fan, gwye-FEN-e-sin, soo-doe-e-FED-rin ]
Brand names: Altarussin CF, Capmist DM, Despec DM, Entre-Cough, Maxifed DMX, ... show all 77 brands
Dosage forms: oral capsule (10 mg-200 mg-30 mg); oral liquid (10 mg-100 mg-30 mg/5 mL; 10 mg-187 mg-30 mg/5 mL; 15 mg-175 mg-30 mg/5 mL; 15 mg-200 mg-30 mg/5 mL; 2.5 mg-25 mg-7.5 mg/mL; 4 mg-20 mg-10 mg/mL; 5 mg-100 mg-15 mg/5 mL); oral tablet (10 mg-200 mg-30 mg; 15 mg-400 mg-60 mg; 20 mg-380 mg-60 mg; 20 mg-400 mg-60 mg; 30 mg-400 mg-60 mg); oral tablet, extended release (60 mg-1200 mg-60 mg; 60 mg-800 mg-120 mg)
Drug class:Upper respiratory combinations

Medically reviewed by Drugs.com on Dec 6, 2021. Written by Cerner Multum.

What is dextromethorphan, guaifenesin, and pseudoephedrine?

Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex.

Guaifenesin is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth.

Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Dextromethorphan, guaifenesin, and pseudoephedrine is a combination medicine used to treat cough, stuffy nose, sinus congestion and chest congestion caused by allergies, the

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