| APE | acetone powder extract; acute polioencephalitis; acute psychotic episode; airway pressure excursion;... |
|---|---|
| ETP | electron transport particle; entire treatment period; ephedrine, theophylline, phenobarbital; eustac... |
| PB | British pharmacopeia [Pharmacopoeia Britannica]; paraffin bath; Paul-Bunnell [antibody]; periodic br... |
| Pb | lead [Lat. plumbum]; phenobarbital; presbyopia |
| P&B | pain & burning; phenobarbital and belladonna |