Drugs to be avoided in pregnant patients : Aspirin and other non steroidal antiinflammatory drugs
Carbamazepine
Chloral hydrate (if chronically used)
Chlordiazepoxide
Corticosteroids
Diazepams and other benzodiazepines
Diphenhydramine hydrochloride (if chronically used)
Morphine
Nitrous oxide (if exposure is greater than 9hr/week or O2 is less than 50%)
Pentazocine hydrochloride
Phenobarbital
Promethazine hydrochloride
Propoxyphene
Tetracyclines
