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birth control and st johns wort

Reduces effectiveness of birth control

What's happening

St. John's Wort induces liver enzymes that break down hormonal contraceptives faster, reducing their effectiveness.

Recommendation

Do not use St. John's Wort if relying on hormonal birth control.

Timing

Avoid combination

Sources

  • — Contraception
  • — FDA

Frequently Asked Questions

Can I take birth control and st johns wort together?

Reduces effectiveness of birth control. Do not use St. John's Wort if relying on hormonal birth control.

How should I time birth control and st johns wort?

Avoid combination

Is this interaction dangerous?

This interaction is rated “Danger” by Formulate. St. John's Wort induces liver enzymes that break down hormonal contraceptives faster, reducing their effectiveness.

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Medical disclaimer. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.