Skip to main content
. 1998 Nov 28;317(7171):1503–1506. doi: 10.1136/bmj.317.7171.1503
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