Tussin DM (Dextromethorphan HBr, Guaifenesin)

**Product type:** Human Otc Drug

**Active ingredient:** DEXTROMETHORPHAN HYDROBROMIDE; GUAIFENESIN

**Strength:** 20; 400 mg/20mL; mg/20mL

**Dosage form:** Solution

**Route:** Oral

**Labeler:** Chain Drug Marketing Association, Inc.

**Marketing category:** OTC MONOGRAPH DRUG (M012)

**Pharmacologic class:** Decreased 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]