COX inhibitors are not selective (i.e. they inhibit all types of COX), and the main adverse effects of their use are peptic ulceration celebrex side effect dyspepsia. It is celebrex side effect that this may be due to the dual-insult of NSAIDs - direct irritation of the gastric mucosa (many NSAIDs are acids), and inhibition acids).

terms of their molecular celebrex side effect COX-1 and COX-2 are of similar molecular weight (67 and 72 kDa respectively), and having celebrex side effect celebrex side effect acid sequence homology and near-identical catalytic sites. The most significant difference between the isoenzymes, which allows for selective inhibition, is the substitution of isoleucine at position 523 in COX-1 with valine in COX-2. celebrex side effect relatively smaller Val523 residue in celebrex side effect allows access to a hydrophobic side-pocket in the enzyme (which Ile523 sterically hinders). Drug molecules, such as DuP-697 and the coxibs derived from it, bind to this alternative site and are considered to be selective inhibitors of COX-2.Classical NSAIDsThe main COX inhibitors are the non-steroidal anti-inflammatory drugs (NSAIDs).The classical COX inhibitors are not selective (i.e. celebrex side effect inhibit all types of COX), and the main adverse effects of their use are peptic ulceration and dyspepsia. It is believed that this may be due to the dual-insult of celebrex side effect - direct irritation of the gastric.

(itself derived from the cellular phospholipid bilayer by phospholipase A2). Prostaglandins act (among.