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pseudoephedrine vs. ephedrine

pseudoephedrine

[soo-doh-i-fed-rin, -ef-i-dreen, -drin] / ˌsu doʊ ɪˈfɛd rɪn, -ˈɛf ɪˌdrin, -drɪn /

noun

Pharmacology.

a dextrorotatory, isomeric compound, C 1 0 H 1 5 NO, used as a nasal decongestant.

ephedrine

[ih-fed-rin, ef-i-dreen, -drin] / ɪˈfɛd rɪn, ˈɛf ɪˌdrin, -drɪn /

noun

Pharmacology.

a white, crystalline alkaloid, C 10 H 15 N, obtained from a species of Ephedra or synthesized: used in medicine chiefly for the treatment of asthma, hay fever, and colds.