Title : The interaction of diltiazem with simvastatin.

Pub. Date : 2000 Mar

PMID : 10741630






5 Functional Relationships(s)
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1 BACKGROUND: Simvastatin is an inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase that is used as a cholesterol-lowering agent and is metabolized by cytochrome P450 3A (CYP3A) enzymes. Simvastatin cytochrome P450 family 3 subfamily A member 4 Homo sapiens
2 BACKGROUND: Simvastatin is an inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase that is used as a cholesterol-lowering agent and is metabolized by cytochrome P450 3A (CYP3A) enzymes. Simvastatin cytochrome P450 family 3 subfamily A member 4 Homo sapiens
3 Diltiazem is a substrate and an inhibitor of CYP3A enzymes and is commonly coadministered with cholesterol-lowering agents such as simvastatin. Simvastatin cytochrome P450 family 3 subfamily A member 4 Homo sapiens
4 CONCLUSION: Diltiazem coadministration resulted in a significant interaction with simvastatin, probably by inhibiting CYP3A-mediated metabolism. Simvastatin cytochrome P450 family 3 subfamily A member 4 Homo sapiens
5 Concomitant use of diltiazem or other potent inhibitors of CYP3A with simvastatin should be avoided, or close clinical monitoring should be used. Simvastatin cytochrome P450 family 3 subfamily A member 4 Homo sapiens