title: Studies on the stability of drugs in biological media. 3. Effect of cupric ion on the stability and antibacterial activity of penicillins in culture medium.
mesh_terms: D002855:Chromatography, Thin Layer; D003300:Copper / Q000494:pharmacology*; D004355:Drug Stability; D007700:Kinetics; D008712:Methicillin / Q000494:pharmacology; D010400:Penicillin G / Q000494:pharmacology; D010406:Penicillins / Q000494:pharmacology*; D013210:Staphylococcus / Q000187:drug effects*
chemical_list: D010406:Penicillins; D003300:Copper; D010400:Penicillin G; D008712:Methicillin