| Medication Classes | ||
| 5-ASA derivative | Anti-parasitic | Diuretic |
| ACE inhibitor | Anti-parathyroid hormone | Electrolyte replacement |
| Alpha-1 blocker | Anti-psychotic | Erythropoietic |
| Alzheimer’s therapy | Anti-retroviral | Hemostatic |
| Angiotensin 2 antagonist | Anti-rheumatoid | Hormone replacement |
| Anti-Parkinsonism | Anti-spastic | Immunosuppressant |
| Anti-adrenergic | Anti-tubercular | Inhaled corticosteroid |
| Anti-arrhythmic | Anti-ulcer | Inhaled smooth muscle relaxant |
| Antibiotic | Anti-viral | Insulin |
| Anti-coagulant/antiplatelet | Benzodiazepine | Nicotine replacement |
| Anti-convulsant | Beta blocker | Non-opiate/NSAID analgesic |
| Anti-depressant | Biologic | NSAID |
| Anti-diarrheal | Bisphosphonate | Opiate analgesic |
| Anti-emetic | Bronchodilator | Oral hypoglycemic |
| Anti-fungal | Bronchodilator/corticosteroid | Phosphodiesterase inhibitor |
| Antihistamine | Calcium channel blocker | Triptan |
| Anti-lipemic | Cathartic/laxative | Vitamins |
| Anti-manic | CNS stimulant |
|
| Anti-neoplastic | Corticosteroid |
|