1 doctor weighed in:

On Cephalexin because of infection. Will this lessen the effectiveness of my birth control (Junel fe 1/20)? Had unprotected sex. Should I be worried?

1 doctor weighed in
Dr. Pamela Huerter
Family Medicine

In brief: Possibly

Antibiotics can decrease the effectiveness of oral contraceptives.
It is advisable to use a back up method until you start your next pack. If you do not get your period when expected best check a pregnancy test to rule out unintended pregnancy

In brief: Possibly

Antibiotics can decrease the effectiveness of oral contraceptives.
It is advisable to use a back up method until you start your next pack. If you do not get your period when expected best check a pregnancy test to rule out unintended pregnancy
Dr. Pamela Huerter
Dr. Pamela Huerter
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