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All proton pump inhibitors except for rabeprazole and pantoprazole are metabolized by the hepatic CYP450 enzyme and therefore, may interact with the metabolism of clopidogrel. Omeprazole is considered to have higher potential for drug-drug interaction than other protein pump inhibitors because it is a CYP2C19 inhibitor. [17]
[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 ...
Important drug interactions are rare. [38] [39] However, the most significant major drug interaction concern is the decreased activation of clopidogrel when taken together with omeprazole. [40] Although still controversial, [41] this may increase the risk of stroke or heart attack in people taking clopidogrel to prevent these events.
Warfarin interacts with many commonly used drugs, and the metabolism of warfarin varies greatly between patients. [27] Some foods have also been reported to interact with warfarin. [27] Apart from the metabolic interactions, highly protein bound drugs can displace warfarin from serum albumin and cause an increase in the INR. [63]
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 ...
But if you’re taking these medications, your supplement might backfire. Calcium supplements may be a bonus for bone health. But if you’re taking these medications, your supplement might ...
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 ...
Warfarin (actually the S-warfarin enantiomer) is a specific probe for CYP2C9. The '+ 1' refers to the vitamin K that is given together with the warfarin to prevent any anticoagulant effect. The Cooperstown cocktail and the Cooperstown 5 + 1 cocktail are powerful tools for investigating the activity of important drug metabolising enzymes.