Are any of the drugs used to treat ITP known to adversely affect a fetus even after a woman has stopped taking them?
This has not been studied thoroughly. There is evidence that rituximab (Rituxan) remains in the body for three months, maybe longer. It is recommended that individuals of childbearing potential use effective contraceptive methods during treatment and for up to 12 months following Rituxan therapy. Check with your physician regarding the period of time you should wait after completing any drug treatment before becoming pregnant.