INTERACTIONS OF CELECOXIB WITH DIFFERENT ANTIDIABETIC DRUGS IN DIABETIC RATS

Document Type : Original Article

Authors

1 Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, El-Madinah El-Munawarah, Saudi Arabia and Faculty of Pharmacy, Mansoura University, Mansoura, Egypt

2 Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt

Abstract

The selective cyclooxygenase-2 inhibitor, celecoxib, can be prescribed to type 2 diabetic patients receiving oral hypoglycemic agents. This study was conducted to assess whether celecoxib affect the hypoglycemic activity of oral hypoglycemic agents in streptozotocin-induced diabetic rats by measuring blood glucose level followed by determination of glucose uptake of isolated rat epididymal fat pads. Also, the effect of anti-diabetic agents on the anti-inflammatory activity of celecoxib was also assessed using carrageenan-induced hind paw edema model in diabetic rats.This study revealed that the effect of celecoxib on the hypoglycemic activity of glibenclamide was additive and can be explained by stimulation of tissue glucose uptake by celecoxib. On the other hand, the effect of celecoxib on the hypoglycemic activity of glimepiride was not simple additive but synergistic. This synergistic effect can be explained not only by stimulation of tissue glucose uptake by celecoxib but also via a pharmacokinetic interaction by increasing the serum glimepiride concentration.