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[19] [31] For drugs recently sold on the market, drugs have information pages (monographs) that provide information on any potential interaction between a medication and grapefruit juice. [19] Because there is a growing number of medications that are known to interact with citrus, [ 1 ] patients should consult a pharmacist or physician before ...
"The best way to monitor for a grapefruit medication interaction is to look out for the side effects of the drug," says Peterson "They should be listed in your paperwork from your prescription and ...
Grapefruit and grapefruit juice have been found to interact with numerous drugs, in many cases resulting in adverse effects. [4] This happens in two ways: one is that grapefruit can block an enzyme which metabolizes medication, [5] and if the drug is not metabolized, then the level of the drug in the blood can become too high, leading to an adverse effect. [5]
The effect of grapefruit juice with regard to drug absorption was originally discovered in 1989. The first published report on grapefruit drug interactions was in 1991 in the Lancet entitled "Interactions of Citrus Juices with Felodipine and Nifedipine", and was the first reported food-drug interaction clinically. The effects of grapefruit last ...
The initial publication in 2002, which has been cited more than 100 times, supported a new model of intestinal drug absorption and novel mechanism of food-drug interactions. [7] Bailey showed that the major flavonoid in grapefruit, naringin , was an important clinically active inhibitor of intestinal OATP1A2.
Grapefruit–drug interactions are common, as the juice contains furanocoumarins that interfere with the metabolism of many drugs. This can prolong and intensify the effects of those drugs, leading to multiple side-effects such as abnormal heart rhythms, bleeding inside the stomach, low blood pressure, difficulty breathing, and dizziness.
When two drugs affect each other, it is a drug–drug interaction (DDI). The risk of a DDI increases with the number of drugs used. [1] A large share of elderly people regularly use five or more medications or supplements, with a significant risk of side-effects from drug–drug interactions. [2] Drug interactions can be of three kinds ...
The Grapefruit-drug interaction article lists Levothyroxine as one of the drugs whose absorption is affected by grapefruit, but the only readily available research online, which is the one cited, ([1]), concluded that "Grapefruit juice may slightly delay the absorption of levothyroxine, but it seems to have only a minor effect on its ...