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One key enzyme is cytochrome P450 3A4, or CYP3A4 ... "Even just one grapefruit or an 8-ounce [236 milliliters] glass of ...
Grapefruit or grapefruit juice has been shown to affect the metabolism ... extensive metabolism through the intestinal cytochrome P450 3A4 (CYP3A4) system, low bioavailability, and a narrow ...
Grapefruit juice: To break down some prescription drugs in the body, the liver uses enzymes called cytochrome P450. But ...