Penicillamine

Penicillamine disulphide - 3,3-(disulphanediyl)bis[(2)-2-amino-3-methylbutanoic]acid

Pefloxacin impurity B - 1-ethyl-6-chloro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (chlorinated homologue of pefloxacin)

Pefloxacin impurity C - 1-ethyl-6-fluoro-5-(4-methylpiperazin-1yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (isopefloxacin)

Penbutolol impurity A - (2S)-1-[2-(cyclopent-1-enyl)phenoxy]-3-[(1,1-dimethylethyl)amino]propan-2-ol

Pefloxacin mesilate dihydrate

Parnaparin sodium

Penbutolol sulphate

Papaverine hydrochloride

Paracetamol