ACE inhibitors
Alcohol
Androgens
Angiotensin-11 receptor blockers
Antiepileptics (phenytoin, valprole acid, carbamazepine)
Benzodiazepines
Carbarsone (amebicide)
Chloramphenicol (thirdtrimester)
Cyclophosphamide
Diazoxide
Diethylstilbestrol
Disulfiram
Ergotamine
Estrogens
Griseofulvin
lsotretinoin
Lithium
Methotrexate
Misoprostol
NSAIDs (third trimester)
Opioids (prolonged use)
Radioiodine (antithyroid)
Reserpine
Ribavirin
SSRis
Sulfonamides (third trimester)
Tetracycline (third trimester)
Thalidomide
Tobacco smoking
Trimethoprim (third trimester)
Warfarin and other coumarin anticoagulants.
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Please complete this list if you can ......

Many other drugs are also contraindicated during pregnancy. Evaluate any d rug for its need versus its potential adverse effects. Further information can be obtained from the manufacturer or from any of several teratogenic registries around the country.
Sources:
- Maxine A. Papadakis, Current medical diagnosis treatment, 2017: 798