New Reasons To Avoid Grapefruit And Other Juices When Taking Certain Drugs, University of Western Ontario Study

ScienceDaily (Aug. 20, 2008) — Scientists and consumers have known for years that grapefruit juice can increase the absorption of certain drugs — with the potential for turning normal doses into toxic overdoses. Now, the researcher who first identified this interaction is reporting new evidence that grapefruit and other common fruit juices, including orange and apple, can do the opposite effect by substantially decreasing the absorption of other drugs, potentially wiping out their beneficial effects.