Gemfibrozil

Gemfibrozil is the generic name for an oral drug used to lower lipid levels. It belongs to a group of drugs known as fibrates. It is most commonly sold as the brand name, Lopid. Other brand names include Jezil and Gen-Fibro.

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Actions

• Increases activity of Peroxisome proliferator-activated receptor-alpha (PPARα), a receptor which is involved in metabolism of carbohydrates and fats, as well as adipose tissue differentiation. This increases synthesis of lipoprotein lipase therefore increasing clearance of triglycerides.

Therapeutic effects

• Reduce triglyceride levels
• Reduce Very low density lipoprotein (VLDL) levels
• Modest reduction of Low density lipoprotein (LDL) levels
• Moderate increase in High density lipoprotein (HDL) levels

Nontherapeutic effects and toxicities

• GI distress
• Musculoskeletal pain
• Increased incidence of gallstones
• Hypokalemia

Indications

• Hyperlipidemia (Type III): Gemfibrozil is the drug of choice for therapy.
• Hypertriglyceridemia (Type IV): Gemfibrozil, though not as effective as niacin, is better tolerated.

Contraindications and Precautions

• Gemfibrozil should not be given to these patients:
  • Hepatic dysfunction
  • Renal dysfunction

• Gemfibrozil should be used with caution in these higher risk categories:
  • Biliary tract disease
  • pregnant women
  • obese patients
  • Native Americans

Drug Interactions

• Anticoagulants. Gemfibrozil potentiates the action of coumadin and indanedione anticoagulants.
• Lovastatin. Risk of myopathy when gemfibrozil is given to patients receiving lovastatin.