| S.No. | Type of drugs | Site of disease | Commonly used drugs |
|---|---|---|---|
| Drugs acting on the central nervous system (CNS) | |||
| 1. | CNS depressants (non–selective) | CNS | morphine, Codeine |
| 2. | CNS depressant (selective) | CNS | L–dopa, diazepam |
| 3. | CNS stimulants | CNS | caffeine, LSD, strychnine |
| 4. | Anesthetics | CNS | thiopental sodium, butacaine |
| 5. | Antipyretics and Analgesics | CNS | aspirin, paracetamol, analgine |
| Drugs acting on the peripheral nervous system | |||
| 6. | Antispasmodic | PNS | atropine, papaverine |
| Drugs acting on the cardio vascular system | |||
| 7. | Cardiovascular agents | Heart or blood vessels | digitalis, lidocaine, reserpine |
| Drug acting on the hematopoietic system | |||
| 8. | Anticoagulants | Blood | dicumarol |
| 9. | Antianemic drugs | Blood | Vitamin B12 |
| Drugs acting on the renal system | |||
| 10. | Diuretics | Kidney | Chlorothiazide |