| NMBA | neuromuscular blocking agent |
|---|---|
| NSAIA | nonsteroidal anti-inflammatory agent |
| OCA | oculocutaneous albinism; olivopontocerebellar atrophy; oral contraceptive agent |
| PAM | pancreatic acinar mass; penicillin aluminum monostearate; peptidylglycine alpha-amidating monooxygen... |
| papova | papilloma-polyoma-vacuolating agent [virus] |