St. John's wort can interfere with oral contraceptives

There's now more evidence that St. John's wort can interfere with oral contraceptives...and lead to unintended pregnancies.

St. John's wort increases the metabolism of ethinyl estradiol...and seems to reduce the effectiveness of OCs.

Some women have breakthrough bleeding when taking St. John's wort and OCs together.

Practical advice for a better career, with unlimited access to CE

Pharmacy Technician's Letter Canada includes:

  • 12 issues every year, with brief articles about new meds and hot topics
  • 200+ CE courses, including the popular CE-in-the-Letter
  • Helpful, in-depth Technician Tutorials
  • Access to the entire archive

Already a subscriber? Log in

Volume pricing available. Get a quote