Doxylamine Impurity CDoxylamine N,N-dimethyl-2-((1RS)-1-phenyl-1-(pyridin-2-yl)methoxy)ethanamine

dropropizineDropropizine 3-(4-Phenyl-1-piperazinyl)-1,2-propanediol

Ephedrine HydrochlorideEphedrine (1R,2S)-(-)-ephedrine hydrochloride

Famotidine Impurity C HydrochlorideFamotidine 3-(((2-((diaminomethylidene)amino)-1,3-thiazol-4-yl)methyl)sulfanyl)-N-sulfamoylpropanamide hydrochloride

Famotidine Impurity F HydrochlorideFamotidine 3-(((2-((diaminomethylidene)amino)-1,3-thiazol-4-yl)methyl)sulfanyl)propanoic acid hydrochloride

famotidine sulfoxide MaleateFamotidine 3-[[2-(Diaminomethyleneamino)thiazol-4-yl]methylsulfinyl]-N′-sulfamoylpropanimidamide (free base)

dextromethorphan-N-oxide HydrochlorideDextromethorphan dextromethorphan-N-oxide hydrochloride

Diclofenac Impurity BDiclofenac 2-((2,6-dichlorophenyl)amino)benzaldehyde

Diphenhydramine Impurity A HydrochlorideDiphenhydramine desmethyldiphenhydramine hydrochloride

diphenhydramine-N-oxide HydrochlorideDiphenhydramine diphenhydramine-N-oxide hydrochloride