Drugs in Obstetrics In obstetrics, various drugs are used during pregnancy, labor, and the postpartum period to manage maternal health, fetal well-being, and complications. These drugs are carefully selected to minimize risk to both the mother and the fetus. Below are the key categories of drugs commonly used in obstetrics. 1. Drugs for Pregnancy A. Antenatal Care Medications 2. Drugs During Labor A. Labor Induction and Augmentation B. Pain Relief