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Monday, November 30, 2009
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Shedding Light on the Co-morbidities of DiabetesThe Complications of Having Rheumatoid Arthritis and Diabetes

Medications

(Page 3)

Side Effects. Side effects include:

  • A metallic taste
  • Gastrointestinal problems, including nausea, and diarrhea
  • Interference with absorption of vitamin B12 and folic acid, (which are important for protection against heart disease)
  • Rare reports of lactic acidosis, a potentially life-threatening condition, particularly in people with risk factors for it. Major studies, however, found no greater risk with metformin than with any of the other drugs used for type 2 diabetes.

Certain people should not use this drug, including anyone with heart failure or kidney or liver disease. It is rarely suitable for adults over age 80.

Sulfonylureas

Sulfonylureas are oral drugs that stimulate the pancreas to release insulin. They are also first-line oral drugs. For adequate control of blood glucose levels, the drugs should only be taken 20 - 30 minutes before a meal. A number of brands are available, including chlorpropamide (Diabinese), tolazamide (Tolinase), acetohexamide (Dymelor), glipizide (Glucotrol), tolbutamide (Orinase), and glimepiride (Amaryl).

Most patients can take sulfonylureas for 7 to 10 years before they lose effectiveness. Combinations with small amounts of insulin or with other oral anti-hyperglycemic drugs (such as metformin or a thiazolidinedione) may extend their benefits. In fact, a combination of glyburide and metformin in one pill (Glucovance) is now available. Glucovance may be particularly beneficial for patients with unhealthy cholesterol levels and poor control of their blood sugar levels. Some doctors recommend the combination as first-line treatment.

An encouraging 2000 study of patients with severe type 2 diabetes reporting that combinations of insulin with either chlorpropamide or glipizide (two different sulfonylureas) achieved better glucose control over the long term than insulin alone.

Side Effects and Complications. In general, sulfonylureas should not be used by women who are pregnant or nursing or by individuals who are allergic to sulfa drugs. Side effects may include:


Review Date: 07/15/2006
Reviewed By: Harvey Simon, M.D., Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).
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