Improved
6112 HealthChanged
3786 LivesSaved
3568 Lives0 lives impacted in the last 24 hrs Learn More
All user-generated information on this site is the opinion of its author only and is not a substitute for medical advice or treatment for any medical conditions. Members and guests are responsible for their own posts and the potential consequences of those posts detailed in our Terms of Service.
Add a Comment1 Comments
Hello Anonymous,
Welcome to EmpowHER. That is a very good question.
Antibiotics taken by mouth can potentially decrease the effectiveness of birth control pills, specifically estrogen-containing oral contraceptives.
This occurs because, in addition to killing the bacteria responsible for causing the current illness or infection, oral antibiotics also kill the normal bacteria that live in the stomach, which are responsible for activating the birth control pill.
As a result, the oral contraceptive may be less effective. Spotting - or 'mid-cycle' bleeding - may be the first sign that an antibiotic is interfering with your birth control pills and lowering their effectiveness.
Antibiotics that have been shown to interact with birth control pills include rifampin (Rifadin®), and to a lesser extent, penicillin, amoxicillin, ampicillin, sulfamethoxazole/trimethoprim (Bactrim®), tetracycline, minocycline, metronidazole (Flagyl®) and nitrofurantoin (Macrobid® or Macrodantin®).
To avoid pregnancy while taking an antibiotic, and for at least one week afterward, doctors generally recommend using a condom or spermicide as a back-up method of birth control in addition to remaining on birth control pills.
Check with your doctor about how long you should continue to use a back-up method.
Regards,
September 9, 2015 - 8:56amMaryann
This Comment