print email comment close Grapefruit Juice: Can It Cause Drug Interactions? URL: http://www.mayoclinic.com/health/food-and-nutrition/AN00413 Description: This article discusses the process whereby "chemicals in grapefruit juice and grapefruit pulp [and possibly pomelos and Seville oranges] interfere with the enzymes that break down (metabolize) various drugs in the digestive system -- including certain calcium channel blockers and cholesterol-lowering drugs." Includes a chart showing specific drugs known to have potentially serious interactions with grapefruit products. From the Mayo Clinic. Author: Zeratsky, Katherine Publisher: Mayo Foundation for Medical Education and Research LII Database Information: Record 27684 created by Jennifer English on 01/09/2009 Last modification on 05/19/2009 Published: 08/12/2009   Funding agency: California State Library LII Item ID: http://lii.org/cs/lii/view/item/27684