| Drug | Possible effects on the baby |
|---|---|
| Amiodarone hydrochloride | Iodine content may cause neonatal hypothyroidism |
| Aspirin | Theoretical risk of Reye’s syndrome |
| Barbiturates | Drowsiness |
| Benzodiazepines | Lethargy |
| Carbimazole | Hypothyroidism (use lowest effective dose) |
| Combined oral contraceptives | May diminish milk supply and reduce nitrogen and protein content of breast milk |
| Cytotoxic drugs | Immune suppression and neutropenia |
| Ephedrine hydrochloride | Irritability |
| Tetracyclines | Theoretical risk of tooth discoloration |