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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Had Wisdom Tooth Removed. Had The Birth Control Implant And Was On Keflex. Why Is My Period Irregular?

I've had the birth control implant for about a year now and, except for light spotting the first two months after insertion, have had no periods since. Recently I took the antibiotic keflex after having my wisdom teeth removed. I called my doctor and she said that the keflex would not affect my birth control. With four days left of the keflex I suddenly got a period. I called my doctor again, concerned that my birth control was in fact being affected. She assured me that random periods, even after a year with no periods, is a normal side effect of Implanon. I'm just not so sure though that the period was random. I believe it was caused by the keflex. Will I eventually stop having periods again, or am I stuck with this for the next two years I have my implanon in?
posted on Sat, 16 Nov 2013
Twitter Tue, 19 Nov 2013 Answered on
Twitter Tue, 19 Nov 2013 Last reviewed on
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General & Family Physician,  's  Response
Hello ma'am and welcome.

The keflex cannot cause or effect your period. This is most probably a hormonal fluctuation which is random and can take place whilst being on the birth control.

Do not worry, finish the course of antibiotics and I am sure this should not recur. If it does, you should report to your prescribing doctor for further assistance.

Hope this helps.

Best wishes.
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Had Wisdom Tooth Removed. Had The Birth Control Implant And Was On Keflex. Why Is My Period Irregular?

Hello ma am and welcome. The keflex cannot cause or effect your period. This is most probably a hormonal fluctuation which is random and can take place whilst being on the birth control. Do not worry, finish the course of antibiotics and I am sure this should not recur. If it does, you should report to your prescribing doctor for further assistance. Hope this helps. Best wishes.