We often write about the benefits of natural remedies. It is important to remember, however, that nearly any compound that has desirable effects might also have some effects that are unwanted. Many botanical medicines have side effects. They may also interact with other medications. One reader reported a frightening nosebleed as a consequence of treatment with turmeric.
Turmeric and Bleeding:
Q. My husband was taking turmeric for its anti-inflammatory properties and it gave him good relief from his daily nagging arthritis pain. Then he got a frightening nosebleed that was hard to stop. We went to be seen at an urgent care center but were eventually able to stop the bleeding on our own.
As others have said, the only thing we could attribute it to was the turmeric. He has not had another nosebleed since stopping the turmeric.
Turmeric Fights Inflammation:
A. The Indian spice turmeric (used in curry) and its active ingredient curcumin (pronounced ker-KYOO-min) have demonstrated anti-inflammatory and anticoagulant activity (International Journal of Biological Macromolecules, Nov. 2015). A number of readers have reported increased bleeding episodes after starting daily dosing with turmeric. They ranged from nosebleeds to heavy menstrual periods.
Beware Interactions with Anticoagulants:
People taking prescription blood thinners such as warfarin (Coumadin) together with turmeric may be especially prone to problems. Some have reported dangerous increases in their INR readings, a measure of the anticoagulation effect of the medicine.
Warfarin & Curry:
One person wrote:
“I am taking warfarin. I had an elevated INR after I had two meals of curry in an Asian restaurant. After I stopped eating curry, my blood work returned to normal.”
Don’t Mix and Match:
We warn readers taking warfarin to avoid adding either turmeric or the more concentrated compound curcumin to their regimen, as it could result in dangerous bleeding. It is not clear, however, whether the turmeric on its own could increase anticoagulation, or whether this effect is due to its impact on the metabolism of the warfarin. A study in rats showed that curcumin increased the blood levels and activity of both warfarin and clopidogrel (Plavix) (Planta Medica, July, 2013).
We suggest that readers on anticoagulant medication avoid taking turmeric or curcumin as supplements so they don’t end up with a frightening nosebleed. Others may need to judge by their own experience whether they are susceptible to such a side effect.