Brand names: Diclofenac sodium and Misoprostol DR
12.1 Mechanism of Action Diclofenac sodium/misoprostol is a combination product containing diclofenac sodium, an NSAID with analgesic, anti-inflammatory and antipyretic properties, and misoprostol, a GI mucosal protective prostaglandin-1 (PGE1) analog. Diclofenac The mechanism of action of diclofenac, like that of other NSAIDs, is not completely understood but involves inhibition of cyclooxygenase (COX-1 and COX-2). Diclofenac is a potent inhibitor of prostaglandin (PG) synthesis in vitro. Diclofenac concentrations reached during therapy have produced in vivo effects. Prostaglandins sensitize afferent nerves and potentiate the action of bradykinin in inducing pain in animal models. Prostaglandins are mediators of inflammation. Because diclofenac is an inhibitor of prostaglandin synthesis, its mode of action may be due to a decrease of prostaglandins in peripheral tissues. Misoprostol Misoprostol is a synthetic PGE1 analog with gastric antisecretory and mucosal protective properties. NS
Contraindications
7 documented side effects by frequency
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14 available comparisons
Dosage Forms
Tablet
Route
Oral