Dextromethorphan / Guaifenesin: study card

Dextromethorphan / Guaifenesin — Antitussive + expectorant. Study the mechanism, listed uses and warnings from the US label on one sourced card.

Generic name
Dextromethorphan / Guaifenesin
Class
Antitussive + expectorant
Mechanism
Guaifenesin loosens phlegm and thins bronchial secretions; dextromethorphan temporarily relieves cough.
Used for
Loosens phlegm and thins bronchial secretions; Temporarily relieves cough due to minor throat or bronchial irritation with a cold or inhaled irritants
Warnings
Do not use during MAOI treatment or for 14 days after stopping an MAOI; Persistent or chronic cough, or cough with excessive mucus, requires medical review before use; Stop use and seek medical review if cough lasts over 7 days, returns, or accompanies fever, rash or persistent headache; The cited liquid product is not for children under 12

Brand questions use only name pairings verified against the linked product source. Unverified pairings are withheld from these questions; the other study content remains available.

Read the source label ↗

Label date: 20260819 · For learning, not clinical decisions. US label and brand information; always consult the current source.

Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.

Pronunciation

Dextromethorphan: dex-troe-meth-OR-fan · Guaifenesin: gwye-FEN-e-sin

Pronunciation is shown for the US English generic name.

Body system

Respiratory · 19 Drug cards