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Guaifenesin

NDC 83720-503 · Oncor Pharmaceuticals

Generic nameGuaifenesin
Dosage formLIQUID
RouteORAL
Active ingredient(s)GUAIFENESIN
Strength100 mg/5mL
Pharmacologic classDecreased Respiratory Secretion Viscosity [PE], Expectorant [EPC], Increased Respiratory Secretions [PE]
Marketing categoryOTC MONOGRAPH DRUG

Packages

83720-503-16 — 473 mL in 1 BOTTLE (83720-503-16)

Related Codes

Same active ingredient

FDA lists these products with the same active ingredient.

83324-143 — Acetaminophen, Dextromethorphan HBr, Guaifenesin, Phenylephrine HCl, 83324-144 — Dextromethorphan HBr, Guaifenesin, Phenylephrine HCl, 83324-155 — Dextromethorphan HBr Guaifenesin Phenylephrine HCl, 83324-162 — Acetaminophen, Dextromethorphan hydrobromide, Guaifenesin, Phenylephrine hydrochloride, 83324-194 — Guaifenesin, 83324-195 — Dextromethorphan Hydrobromide / Guaifenesin, 83324-323 — Dextromethorphan HBr, Guaifenesin, 83324-324 — Dextromethorphan HBr, Guaifenesin, 83324-327 — Dextromethorphan HBr, Guaifenesin, 83324-332 — GUAIFENESIN, 84126-310 — Dextromethorphan HBr, Guaifenesin, 84126-355 — Dextromethorphan HBr, Guaifenesin, 84126-363 — Acetaminophen, Guaifenesin, Pseudoephedrine HCl, Dextromethorphan HBr, 84126-382 — Acetaminophen, Guaifenesin, 84269-2556 — PHENYLEPHRINE HYDROCHLORIDE, ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, 84324-009 — guaifenesin 400 mg, 84324-026 — Guaifenesin, 84324-034 — Guaifenesin, 84324-035 — Dextromethorphan HBr 20mg Guaifenesin 400mg, 84379-274 — Dextromethorphan HBr and Guaifenesin, +1437 more

From the FDA National Drug Code Directory, retrieved August 24, 2026. Product listings are submitted by labelers; FDA does not verify them.