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NDC 46122-637 · Amerisource Bergen

Generic namedextromethorphan HBr, guaifenesin

Dosage formTABLET, EXTENDED RELEASE

RouteORAL

Active ingredient(s)GUAIFENESIN, DEXTROMETHORPHAN HYDROBROMIDE

Strength60; 1200 mg/1; mg/1

Pharmacologic classDecreased Respiratory Secretion Viscosity [PE], Expectorant [EPC], Increased Respiratory Secretions [PE], Sigma-1 Agonist [EPC], Sigma-1 Receptor Agonists [MoA], Uncompetitive N-methyl-D-aspartate Receptor Antagonist [EPC], Uncompetitive NMDA Receptor Antagonists [MoA]

Marketing categoryANDA

Packages

46122-637-03 — 1 BOTTLE in 1 CARTON (46122-637-03) / 28 TABLET, EXTENDED RELEASE in 1 BOTTLE

46122-637-74 — 1 BOTTLE in 1 CARTON (46122-637-74) / 14 TABLET, EXTENDED RELEASE in 1 BOTTLE

Related Codes

Same active ingredient

FDA lists these products with the same active ingredient.

46122-136 — Acetaminophen, Dextromethorphan HBr, Doxylamine succinate, 46122-141 — dextromethorphan polistirex, 46122-198 — Acetaminophen, Dextromethorphan HBr, Doxylamine succinate, 46122-245 — Acetaminophen, Dextromethorphan HBr, Doxylamine succinate, 46122-410 — ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, and PHENYLEPHRINE HYDROCHLORIDE, 46122-412 — ACETAMINOPHEN, GUAIFENESIN, and PHENYLEPHRINE HYDROCHLORIDE, 46122-415 — ACETAMINOPHEN, GUAIFENESIN, and PHENYLEPHRINE HYDROCHLORIDE, 46122-418 — ACETAMINOPHEN, DEXTROMETHORPHAN HYDROBROMIDE, GUAIFENESIN, and PHENYLEPHRINE HYDROCHLORIDE, 46122-420 — Guaifenesin and Dextromethorphan HBr, 46122-541 — Dextromethorphan Hydrobromide, Guaifenesin, 46122-683 — Guaifenesin, 46122-700 — Guaifenesin/phenylephrine, 46122-704 — dextromethorphan hydrobromide, guaifenesin, 46122-705 — Chlorpheniramine maleate, Dextromethorphan HBr, 46122-712 — ACETAMINOPHEN, GUAIFENESIN, and PHENYLEPHRINE HYDROCHLORIDE, 46122-750 — Guaifenesin, 46122-782 — Dextromethorphan HBr, Guaifenesin, 46122-783 — dextromethorphan hydrobromide and guaifenesin, 46122-784 — Dextromethorphan HBr, 46122-785 — Guaifenesin, +2508 more

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

Read from: FDA National Drug Code Directory, product.txt and package.txt (accessdata.fda.gov/cder/ndctext.zip) — Snapshot retrieved 2026-08-24, loaded 2026-08-24; CMS Medicare Part B Drug Average Sales Price (ASP) Pricing Files (cms.gov/medicare/payment/part-b-drugs/asp-pricing-files) -- the NDC-HCPCS crosswalk and Part B payment limit files — 2026 Q3 (July 2026 release). All data sources · How to read the labels