Get Virtual Care
For Businesses
About Us
A member asked:
I recently finished an antibiotic about a week ago. how long does it stay in your system and how long can it affect my birth control?
A doctor has provided 1 answer
Elimination issue: That depends on the antibiotic. Usually we say that it takes 5 half lives of the antibiotic to get out of the body. More importantly, the effect on your normal gut bacteria; can be altered > 1 month depending on how broad spectrum the antibiotic. Flora helps ocp absorption. It would be safest to at least use a secondary mode of protection for a month after you complete your course of antibiotic.
Answered 10/4/2016
5.1k views
Related Questions
A member asked:
Is it normal for me to have my period even if I am on an active pill on birth control. I just finished a course of antibiotics for tonsillitis.
A doctor has provided 1 answer
A member asked:
Finished antibiotics on the 12th.. kept up birth control tablets throughout, and had unprotected sex on the 15th? did i not wait enough time?
A doctor has provided 1 answer
A member asked:
On birth control but just finished antibiotics.Husband & I had sex on Friday.Sunday I noticed jelly discharge & having cramps. Could I be ovulating?
A doctor has provided 1 answer
A member asked:
I'm on birth control, but recently took antibiotics. Can the antibiotics make my period come early? I have had spotting 3 days before my period
A doctor has provided 1 answer
A member asked:
I am on birth control (Yazmin) and i toke Keflex. I had unprottected sex (without ejaculation) 2 days after i finished the antibiotic. Im pregnant?
A doctor has provided 1 answer
People also searched for:
I just recently finished my period a week ago was on antibiotics and am not on any birth control. i have been on antibiotics for 1 week yomax 500mg taken 3 times daily for my tooth infection. had unprotected sex 3 nights ago.couldi be pregnant?
I am not on birth control now but I start next month. I am getting on antibiotics. How long until it is out of my system for birth control to work?
I was just recently on antibiotics for a staph infection and kept taking my birth control pill daily also. Is it normal to have my period for 2 weeks?
Recently had d and c..Doctor along with antibiotics hav prescribed birth contol pill..She said it is for controlling harmones of mind..Is it necessary?
Hi there, I'm on the Zoley birth control pill and have recently been on the antibiotic Fixime, I have had protected sex. Am I at risk of pregnancy?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Download HealthTap
Video visit and message your doctor
