ANONYMOUS...a friend of mine, virgin had unprotected sex ,the next day in the evening, she took postenor 2...the 2 tablets at a go....that same evening,i had a feeling of nausea,she later vommitted ,saw some traces of the drug in the vomit,the next evening,she re-took the pill cos she was scared because seems she vommitted the previous one....is there any side effect to this?cos i can't really tell if it was taken in excess so scared....though she has been havin pains in my tummy and traces of blood in stool and some traces of bloody discharge.....please help me cos i don't know what to tell her she's just in a state of dilenma........