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Herbal supplements and heart medicines may not mix

Hawthorn

Hawthorn might interact with:

  • Beta blockers, such as atenolol (Tenormin), nadolol or propranolol (Inderal LA, Innopran XL).
  • Calcium channel blockers, such as diltiazem, nifedipine (Procardia) and verapamil (Verelan).
  • Nitrates, such as nitroglycerin (Nitrostat, Nitro-Dur, others) and isosorbide (Isordil).
  • Digoxin.