Glimepiride is a medium-to-long acting sulfonylurea anti-diabetic drug. It
is marketed as Amaryl by Sanofi-Aventis. Glimepiride is the first third-generation
sulfonylurea, and is very potent.
Indications
Type 2 diabetes (or) NIDDM
Adverse effects
GI disturbance, rarely thrombopenia , leucopenia, haemolytic anaemia, occasionally
allergic. In the initial weeks of treatment, the risk of hypoglycemia, may
be increased.
Contraindications
Hypersensitivity to glimepiride or other sulfonylureas.
Interactions
With NSAIDs like Salicylates, Sulphoamides, Chlorampenicol, coumarin and probencid
may potentiate the hypoglycemic action of glimepride. Thiazides, other diuretic,
phothiazides, thyroid products, oral contraceptives, phenytoin tend to produce
hyperglycemia.
Pharmacology
With Glimepiride GI absorption is complete with no interference of meals. Significant
absorption of glimepiride was seen within one hour, and distributed through
out the body, bound to the plasma protein to an extended of 99.5% and it is
metabolised by oxidative biotransformation and 60% is excreted in the urine,
and remaining is excreted in the feces.
Mechanism of action
Glimepiride distinctly lower the blood glucose level by both defects of NIDDM,
by stimulating pancreatic beta cells to produce more insulin and induced increased
activity of peripheral insulin intra cellular receptor.