How long do i need backup? - Birth Control Message Board

Sassy76 · 10-03-2006, 08:55 PM

I am on the antibiotic Amoxicillan for a gum infection, I take Levlan birth control. I know that the antibiotic can make the birth control not work right. How long do I need to use backup so I don't get pregnant?? I just started taking the antibiotic yesterday (Monday). I have started to have some breakthrough bleeding today and I am guessing it is from the antibiotic, can anyone help me??

LadyMirabelle · 10-04-2006, 10:55 AM

You definitely need to use backup the entire time you are taking the antibiotic. Once you finish the antibiotics, you may need to use back up for 7 days to a month, depending on the specific antibiotic and its interactions with the pill. Ask your doctor. I imagine that you should only need the backup for a week or two after you stop the antibiotics.