Categories

Bleeding risks of dietary supplements after surgery and anticoagulant use spotlighted

Posted 03 January 2023

After identifying the 47 most popular dietary-supplement ingredients in the U.S., researchers reviewed the literature on the risks of bleeding they pose to patients postoperatively and while taking anticoagulant medications. [Hatfield J and others. Dietary supplements and bleeding. Baylor University Medical Center Proceedings. 35:802–807, 2022]

They found:

  • Garlic and hawthorn supplementation is strongly associated with surgical bleeding.
  • Cordyceps sinensis, echinacea, and aloe vera were each associated with surgical bleeding in just one case report.
  • Ginkgo biloba, chondroitin-glucosamine, melatonin, turmeric, bilberry, chamomile, fenugreek, milk thistle, and peppermint are associated with bleeding risk for patients taking anticoagulants.
  • Fish oil, ginseng, and saw palmetto are not linked to bleeding.
  • Evidence for overall bleeding risk of St. John’s wort, ginger, ginkgo biloba, or cranberry supplementation is conflicting.

Source: Consumer Health Digest #23-01, January 1, 2023

Read the rest

AHA Warning: Some Supplements can Worsen Heart Failure

Posted 11 August 2016

In a new scientific statement citing Natural Medicines, the American Heart Association (AHA) warns against the use of many supplements in people with heart failure. St. John’s wort, grapefruit juice, ginsenghawthorn, danshen, black cohosh, and green tea are among those discussed for their potential to cause significant interactions with commonly used heart failure medications. Other natural medicines, including aconitegossypol, licorice, and yohimbine are noted for their potential to cause harmful cardiovascular effects, including high blood pressure and decreased heart rate. Ephedra, a banned substance in the US, is also warned against as it raises blood pressure, can stimulate the heart, and make chest pain and irregular heartbeat worse.

For more details on specific drug interactions associated with these supplements, please review our scientific monographs on each product, or try our interaction checker.Read the rest