Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
144 Doctors Online

By proceeding, I accept the Terms and Conditions

Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

HCM Blog Instant Access to Doctors
HCM BlogQuestions Answered
HCM Blog Satisfaction

Do antibiotics affect contraception?

Answered by
Dr. Harish Naik

General & Family Physician

Practicing since :2008

Answered : 2617 Questions

Posted on Tue, 7 Jun 2016 in General Health
Question: Hi I've been taking doxycycline 100 mg B.I.D now for four days and on microgynon 50 ED but have had unprotected sex three times since starting it chances of conceiving
Answered by Dr. Harish Naik 2 hours later
Brief Answer:
You are less likely to conceive

Detailed Answer:
I have gone through your query.

Most antibiotics don't affect contraception. It's now thought that the only types of antibiotic that interact with hormonal contraception and make it less effective are rifampicin-like antibiotics. Doxycycline does not come under this.

From this I can say that you are less likely to conceive.

This provisional advice provided by me is based entirely on the input provided to me. I would suggest examination by the doctor.

I hope this suggestion might be of some help to you.
Take care.

Above answer was peer-reviewed by : Dr. Raju A.T

The User accepted the expert's answer

Share on
Question is related to

Recent questions on  Microgynon

doctor1 MD

Hi Doctor, I have recently starting to notice my hair looking thinner on one side of my head.
I have read online about some reasons why this might...

doctor1 MD

Hello, Every time I have sex, I bleed. It's not a huge amount but it's definitely there. It's not to do with 'rough' sex either. I had an sti test...

doctor1 MD

i am 50 and trying to ivf but my uterus lining is not lining up to 8 for normal pregnancy . i am told that my lining can only reach 5.2. I want to...

doctor1 MD

hello doctor, I am having some bouts of emotional imbalance and alot of pimples on my face. I have not used any hormonal preparations before can I...

doctor1 MD

Hi, i take Microgynon, the contraceptive pill. My last period was about 4 weeks ago and my next one is due today, ive never had a missed or late...

doctor1 MD

i have just been diagonised with PCOS . i hear that the main problem is cysts in the ovaries, and insulin resistance , therefore my doctor has put...