Synonyms: Dextromethorphan Hydrobromide;Dextromethorphan HBr;(1S,9S,10S)-4-methoxy-17-methyl-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2,4,6-triene hydrobromide;(1S,9S,10S)-4-Methoxy-17-methyl-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2,4,6-trienhydrobromid;(9a,13a,14a)-3-methoxy-17-methylmorphinan hydrobromide (1:1);(9α,13α,14α)-3-Methoxy-17-methylmorphinan hydrobromide (1:1);morphinan, 3-methoxy-17-methyl-, (9a,13a,14a)-, hydrobromide (1:1);morphinan, 3-methoxy-17-methyl-, (9α,13α,14α)-, hydrobromide;