What causes irregular vaginal bleeding after intake of tri sprintec?
Patient: I have been on tri sprintec for about 6 months the now, I have started bleeding for the 3 rd time in 2 months. I have been taking amoxicillian for a sinus infection. And today I was put on sulfamethoxazole-trimethoprim and I began bleeding 6 hours after taking it. What could be the issue here? What can I do to fix it? Doctor: Hi Hope this message finds u in good health.I have gone through ur msg and understand your concern.it may be due to some sort of hormonal imbalances or variations in the body,though there may be other reasons as wellNothing to worry about, You should eventually get back to normal.Take multi vitamin and calcium supplements Do consult a gynecologist if symptoms worsenGet back to me for any  FOLLOW UP QUERIES anytime.Regards,Dr Mahaveer Patil...(MBBS,MS,Mch)