Abstract
Treatment of hypercholesterolemia has been shown to reduce mortality in patients with coronary artery disease. Patients with severe lipid abnormalities may require high-dose statin therapy, at times used in combination with additional agents. The occurrence of rhabdomyolysis is one of the rare side-effects of the cholesterol-lowering agents. During the use of simvastatin, the risk of this side-effect might be increased when macrolides are used concomitantly. The interacting mechanism likely was inhibited cytochrome P450 (CYP) 3A4 metabolism and possibly P-glycoprotein transport of simvastatin as well. We present a patient who developed rhabdomyolysis during the concomitant use of simvastatin and erythromycin. Coprescribing of medications not compatible with statins occurs frequently: to prevent future events, it is crucial that clinicians recognize the interaction risk associated with coprescribing, to assure that the risk of untoward effects is mitigated.
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