2,4-Dichlorobenzyl alcohol impurity A - 2,5-Dichlorobenzyl alcohol

Zopiclone oxide

Zolpidem impurity A - N,N'-dimethyl-2-[7-methyl-2-(4-methylphenyl)imidazol [1,2-a]pyridin-3-yl]acetamide

Zinc acexamate impurity A - 6-[[6-(acetylamino)hexanoyl]amino] hexanoic acid

Zinc acexamate

Zidovudine impurity B - 1-(3-Chloro-2,3-dideoxy-beta-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione

Zidovudine

Ethylcellulose

Pancreas powder (amylase) BRP

Pancreas powder (lipase) BRP