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Page: Pharmacology
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All statins act by inhibiting HMG-CoA reductase, the rate-limiting enzyme of the HMG-CoA reductase pathway, the metabolic pathway responsible for the endogenous production of cholesterol.
The drug is the form of an inactive lactone that is hydrolized after ingestion to produce the active agent. It is a white, nonhygroscopic, crystalline powder that is practically insoluble in water, and freely soluble in chloroform, methanol and ethanol.
Interactions
Grapefruit contains the flavanones naringenin and bergamottin, which inhibit the liver cytochrome P450 3A4. This in turn slows metabolization of simvastatin and a large number of other drugs. Therefore, patients taking simvastatin should restrict their intake of grapefruit and grapefruit-containing products.
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Important notice:
The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other
qualified health provider with any questions you may have regarding a medical condition.
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