Patient : I just started taking Ortho Tri-Cyclen, but two days before i started my birth control pack i had taken one 250mg pill of tetracycline(for acne). but i stopped after i took it because i remembered it might react with birth control and i needed to start my pill. I've been taking the pill for 12 days now, but i'm not sure if it's safe to have sex without a backup. how long will it take for my birth control to be effective if i had only taken the one tetracycline pill 12 days ago?
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.