I know this is a little late. i took vioxx for a good 6 months i would say. and within those 6 months they had me taken either the 25 mg or 50 mg i dont remember now. i believe it was the 50 mg once a day. i took well over 300 of these pills. and i have no clue if in my future i am going to have problems because of it. i was 14/15 when i took these pills im now 17.