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Herbal and Prescription Medicine Interactions

Here is a list of herbs that should not be taken while on prescribed medication. Notify your pharmacist or doctor right away if you are taking any of the following medication with this herbs or natural products. Natural products are not always a safe item to take and they are not regulated by the FDA. In addition if you are taking any herbal supplement let your healthcare provider know about them.

Ephedra or Ma Huang*

  • Isocarboxazid (Marplan)
  • Phenelzine (Nardil)
  • Tranylcypromine (Pamate)
  • Heart medications

    Garlic

  • Coumadin (Warfarin)
  • Aspirin or aspirin containing products
  • Clopidogrel (Plavix)
  • Ticlopidine (Ticlid)

    Ginkgo Biloba

  • Coumadin (Warfarin)
  • Aspirin or aspirin containing products
  • Clopidogrel (Plavix)
  • Ticlopidine (Ticlid)
  • Trazodone (Desyrel)

    Kava Kava

  • Alprazolam or Xanax or Niravam

    Panax Ginseng

  • Coumadin (Warfarin)
  • Phenelzine (Nardil)
  • Furosemide (Lasix)

    Soy products

  • Coumadin (Warfarin)
  • Levothyroxine or one of the following:
    Levothroid, Levoxyl, Snythroid, or Unithroid

    St. John's Wort

  • Coumadin (Warfarin)
  • Paroextine (Paxil)
  • Sertraline (Zoloft)
  • Oral Contraceptives
  • Cyclosporine or one of the following:
    Neoral, Restasis, Sandimmune
  • Irinotecan (Camptosar)
  • Digoxin or one of the following:
    Lanoxicaps or Lanoxin
  • Verapamil or one of the following:
    Calan SR, Calan, Covera-HS, Isoptin SR, Verelan PM or Verelan
  • Tacrolimus or Prograf or Protopic

    White Willow Bark

  • Coumadin (Warfarin)
  • Aspirin or aspirin containing products
  • Clopidogrel (Plavix)
  • Ticlopidine (Ticlid)
  • Non-Steroidal anti-inflammatory drugs

    Yohimbine

  • Sibultramine (Meridia)
  • Blood pressure medications
  • Lithium or one of the following:
    Eskalith CR, Eskalith or Lithobid
  • Morphine

    * FDA issued a consumer alert on the safety of dietary supplements containing ephedra on Dec. 30, 2003. The alert advised consumers to immediately stop buying and using ephedra products. Ephedra can lead to hypertension, palpitations, tachycardia, stroke, seizures and death.