Classification of Expectorants and Antitussives

CLASSIFICATION

I. Centrally active antitussive agents

i. Dextromethorphan HBr

ii. Levopropoxyphene napsylate

iii. Noscapine

iv. Pholcodine

v. Codeine Phosphate

II. Peripherally acting antitussives

i. Benzonatate

ii. Carbetapentane

iii. Caramiphen

iv. Chlophedianol hydrochloride

v. Isoaminile