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A member asked:
Can amoxicillan cause you to spot? period not due for a week, on birth control. been on antibiotics for a week
A doctor has provided 1 answer
Very possible: Antibiotics can affect birth control. Always use extra protection with condoms when taking birth control and antibiotics. Birth control pills keep your menstrual cycle regular and prevent ovulation because of the type and dosage of hormone you take each day. Antibiotics can interfere with the absorption of the pill in your gut and vary the amount of hormone absorbed thereby altering your menses.
Answered 10/3/2013
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