Clinical trial, patients with type diabetes not adequately controlled on current oral antihyperglycemic therapy either monotherapy or combination therapy were first switched to open label GLUCOVANCE. Hypoglycemia may be difficult to recognize in the elderly and in people who are taking beta-adrenergic blocking drugs kjope glyburide uten et kredittkort or other sympatholytic agents. These drugs include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid.