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do topical antibiotics like eye drops effect birth control?

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Hello. I am on Tri-Sprintec. I have been told injesting anti-biotics reduces effectiveness. However, does that include topical antibiotics, such as eyedrops? I was recently given Tobramycin Opthalmic Solution USP. Does this still reduce the effectiveness?
If so, how long do I have to wait before the effectiveness is back, since I haven't been taking antibiotic pills, just topical??? Thanks for the quick response!


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replied June 4th, 2012
Birth Control Answer A35655
Hi,
Welcome to ehealthforum,
Usually systemic forms (oral antibiotics or injectable forms) can affect the efficacy of your birth control pills. Topical antibiotic use should not affect the efficacy of your birth control. Wait and watch for your withdrawal bleeding/periods. Use back-up protection for additional protection if you are worried about pregnancy, and avoid having unprotected sexual contact if you are not ready for pregnancy. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Take adequate rest. Drink plenty of water. Maintain healthy diet and lifestyle.
Take care.


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