| PNG | penicillin G |
|---|---|
| POB | penicillin, oil, beeswax; phenoxybenzamine; place of birth |
| PSE | paradoxical systolic expansion; penicillin-sensitive enzyme; portal systemic encephalopathy; Present... |
| PST | pancreatic suppression test; paroxysmal supraventricular tachycardia; penicillin, streptomycin, and ... |
| PVK | penicillin V potassium |