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Atorvastatin undergoes high intestinal clearance and first-pass metabolism, which is the main cause for the low systemic availability. Administration of atorvastatin with food produces a 25% reduction in C max (rate of absorption) and a 9% reduction in AUC (extent of absorption), although food does not affect the plasma LDL-C -lowering efficacy ...
CYP3A4 isoenzyme is the most predominant isoform involved in metabolism of lovastatin, simvastatin, atorvastatin and cerivastatin. [8] [13] CYP2C9 isoenzyme is the most predominant isoform involved in metabolism of Fluvastatin, but CYP3A4 and CYP2C8 isoenzymes also contribute to the metabolism of Fluvastatin. [13]
Furanocoumarins in grapefruit juice (i.e. bergamottin and dihydroxybergamottin) inhibit the cytochrome P450 enzyme CYP3A4, which is involved in the metabolism of most statins (however, it is a major inhibitor of only lovastatin, simvastatin, and to a lesser degree, atorvastatin) and some other medications [129] (flavonoids (i.e. naringin) were ...
Many medications can only be broken down and metabolized with the help of an enzyme in your digestive tract called CYP3A4. ... (atorvastatin) and Zocor (simvastatin) Certain antihistamines, like ...
CYP3A4 is a member of the cytochrome P450 superfamily of enzymes.The cytochrome P450 proteins are monooxygenases that catalyze many reactions involved in drug metabolism and synthesis of steroids (including cholesterol), and other lipids.
HMG-CoA reductase (3-hydroxy-3-methyl-glutaryl-coenzyme A reductase, official symbol HMGCR) is the rate-controlling enzyme (NADH-dependent, EC 1.1.1.88; NADPH-dependent, EC 1.1.1.34) of the mevalonate pathway, the metabolic pathway that produces cholesterol and other isoprenoids.
CYP1A2 is a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids.
Statins are linked to better health outcomes in older adults over the age of 70 with or without previous cardiovascular disease, a new study finds.