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Herbal supplements and heart medicines may not mix

St. John's wort

It's not suggested to take St. John's wort if you take blood thinners. It also may keep some medicines from working as well as they should, such as:

  • Calcium channel blockers.
  • Digoxin.
  • Warfarin.
  • Statins, such as atorvastatin (Lipitor), lovastatin and rosuvastatin (Crestor).
  • Antirejection medicine, also called immunosuppressant medicine, such as cyclosporine (Gengraf, Neoral, Sandimmune).