| Active Ingredient | PETHIDINE |
| Therapeutic Class | OPIATE AGONISTS |
| Indications | Obstetric analgesia. |
| Caution | See morphine (but less constipating). |
| Dose Range | 50 to 100 mg may be given by intramuscular or subcutaneous injection as soon as contractions occur at regular intervals. This dose may be repeated after 1 to 3 hours if necessary up to a maximum of 400 mg in 24 hours. |
| Drug Interactions | |
| Pregnancy | |
| Breast Feeding |