Cranberry and Warfarin

Cranberry is a small, evergreen shrub where the berries and juice, and juice extracts are often used as medicine. In foods, the cranberry fruit is eaten, as well as used in cranberry juice, juice cocktail, jelly or sauce.

The health benefits of cranberries have been recognized for decades. Cranberries have been shown to help protect against urinary tract infections (UTIs) by preventing bacteria from adhering to the cells that line the urinary tract.1

Interactions with warfarin?

The evidence is mixed and not completely clear on whether or not cranberry interacts with warfarin, so it’s best to ask your doctor before you take cranberry or drink a lot of juice.

Click here for a list of clinical reference regarding cranberry.

  1. Barbosa-Cesnik C, Brown MB, Buxton M, Zhang L, DeBusscher J, Foxman B. Cranberry juice fails to prevent recurrent urinary tract infection: results from a randomized placebo-controlled trial. Clin Infect Dis. 2011. Jan 1;52(1):23-30.