Gemfibrozil is a medication primarily used to lower high levels of triglycerides and cholesterol in the blood. It belongs to a class of drugs known as fibrates, which work by reducing the production of triglycerides in the liver and increasing the breakdown of fats. This helps to improve overall lipid profiles and reduce the risk of heart disease. Patients typically take gemfibrozil orally, usually twice a day, about 30 minutes before meals. It is important to follow a healthcare provider's instructions and maintain a healthy diet and lifestyle while using this medication to achieve the best results.