sir, i m 34yrs old pregnent of 6 weeks now, few days back i was detected with tb in lymphnode,during that time i was prescribed with akt4, near about 20 days after taking this medicine, my pregnnency detected, now doc changed my medicine, -its now,INH,r-cin-600,Combutol & benadon,now my question is, has pyridoxine will have any side effect in feotus,secondly now my changed drugs are how much safe for my baby(specialy benadon)