Gemfibrozil (Oral Route)

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Before Using

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

In addition to its helpful effects in treating your medical problem, this type of medicine may have some harmful effects.Results of a large study using gemfibrozil seem to show that it may cause a higher rate of some cancers in humans. In addition, the action of gemfibrozil is similar to that of another medicine called clofibrate. Studies with clofibrate have suggested that it may increase the patient's risk of cancer, liver disease, pancreatitis (inflammation of the pancreas), gallstones and problems from gallbladder surgery, although it may also decrease the risk of heart attacks. Other studies have not found all of these effects.Studies with gemfibrozil in rats found an increased risk of liver tumors when doses up to 10 times the human dose were given for a long time.Be sure you have discussed this with your doctor before taking this medicine.

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

There is no specific information about the use of gemfibrozil in children. However, use is not recommended in children under 2 years of age since cholesterol is needed for normal development.

Geriatric

Many medicines have not been studied specifically in older people. Therefore, it may not be known whether they work exactly the same way they do in younger adults or if they cause different side effects or problems in older people. There is no specific information comparing use of gemfibrozil in the elderly with use in other age groups.

Pregnancy

Breastfeeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Drug Interactions

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

• Repaglinide
• Simvastatin

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

• Atorvastatin
• Bexarotene
• Cerivastatin
• Colchicine
• Eltrombopag
• Ezetimibe
• Fluvastatin
• Lovastatin
• Pitavastatin
• Pravastatin
• Rosuvastatin

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

• Dicumarol
• Glyburide
• Loperamide
• Lopinavir
• Montelukast
• Pioglitazone
• Rosiglitazone
• Warfarin

Other Interactions

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Other Medical Problems

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

• Gallbladder disease or
• Gallstones—Gemfibrozil may make these conditions worse

• Kidney disease or
• Liver disease—Higher blood levels of gemfibrozil may result, which may increase the chance of side effects; a decrease in the dose of gemfibrozil may be needed

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