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Gemfibrozil, or 5-(2,5-dimethylphenoxy)-2,2-dimethylpentanoic acid), is a antilipemic medication that lowers serum triglyceride levels, with variable effects on cholesterol. Gemfibrozil is a fibrate derivative similar to bezafibrate, clofibrate, and procetofen (fenofibrate).

Gemfibrozil lowers the VLDL fraction more than it lowers the LDL fraction. Gemfibrozil increases lipoprotein triglyceride lipolysis by increasing the activity of extrahepatic lipoprotein lipase. Chylomicrons are degraded, VLDLs are converted to LDLs, and LDLs are converted to HDL. Gemfibrozil can treat hypoalphalipoproteinemia by increasing the HDL subfractions HDL2 and HDL3, and apolipoproteins A-I and A-II. It is supplemental therapy for type IIb hypercholesterolemia.

Drug Interactions

Gemfibrozil increases the anticoagulant effects of anisindione, dicumarol, acenocoumarol and warfarin. There is an increased risk of myopathy/rhaddomyolysis when gemfibrizol is taken with the cholesterol lowering statin drugs atorvastatin (Lipitor), cerivastatin, fluvastatin (Lescol), lovastatin, pravastatin (Pravachol), and simvastatin (Vytorin). Gemfibrizol increases the effects and toxicity of pioglitazone, rosiglitazone and repaglinide. The statin rosuvastatin (Crestor) may increase the effect of gemfibrizol, and gemfibrizol decreases the effects of ursodiol.

Brand Names

  • Apo-Gemfibrozil
  • Bolutol
  • Cholespid
  • Decrelip
  • Fibratol
  • Fibrocit
  • Gemfibril
  • Gemfibromax
  • Gemlipid
  • Gen-Fibro
  • Genlip
  • Gevilon
  • Hipolixan
  • Jezil
  • Lipozid
  • Lipur
  • Lopid
  • Novo-Gemfibrozil
  • Nu-Gemfibrozil

External Links

The most up-to-date information about Gemfibrozil and other drugs can be found at the following sites.