Can few pills of 0.25 mg xanax in the first trimester cause birth defets? (i took it occasionally, only when i bleeded and though i miscarry, alltogeather 7 pills). i gave birth to fraternal twins with simian crease,low-set ears,slightly smaller hc?

Xanax ?'s: First trimester Xanax is associated with birth defects in newborns when that pregnancy in the "first trimester" included ingestion of Xanax. Pregnancies occurring with no Xanax taken may have congenital anomalies, but not due to Xanax in previous pregnancies.

Yes: Yes it is likely that Xanax can cause birth defects specially prior to 11 weeks