Published on: 8/20/2025
What medications interfere with birth control pills?
Some medications can make birth control pills less effective, including certain antibiotics, anti-seizure medications, and herbal supplements like St. John's Wort.
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Explanation
Certain medications can interfere with the effectiveness of birth control pills. This means they might make the pill not work as well to prevent pregnancy. Here are some types of medications that can cause this:
Antibiotics: Some antibiotics can affect how your body processes birth control pills. It's important to talk to your doctor if you're prescribed antibiotics.
Anti-seizure medications: These are used to treat epilepsy and other conditions, but some can also reduce the effectiveness of birth control pills.
Herbal supplements: St. John's Wort is a common herbal supplement that can interfere with birth control pills.
It's important to always tell your healthcare provider about all the medications and supplements you are taking. They can help you find the best way to stay protected against pregnancy while taking these medications. Remember, if you have any concerns about your birth control, talk to your doctor.
(References)
- Fazio A. (1991). Oral contraceptive drug interactions: important considerations. Southern medical journal, 1882277.
- Back DJ, & Orme ML. (1990). Pharmacokinetic drug interactions with oral contraceptives. Clinical pharmacokinetics, 2191822.
- Fotherby K. (1990). Interactions with oral contraceptives. American journal of obstetrics and gynecology, 2256524.
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