Diclofenac, a phenylacetic acid derivative is a prototypical NSAID. It has potent anti-inflammatory, analgesic and antipyretic actions. It reversibly inhibits the enzyme, cyclooxygenase, thus resulting in reduced synthesis of prostaglandin precursors.
Enteric coated tablet: A total of 75-150 mg daily given in two or three divided doses.
Sustained release tablets: One tablet daily, taken whole with liquid, preferably during meal.
Suppositories: 75-150 mg daily in divided doses.
Gel: Depending on the painful site to be treated, 2-4 g gel may be applied 3-4 times daily.
Enteric coated tablet: 1-3 mg/kg per day in divided doses.
Sustained release tablets: Not recommended.
Suppositories: 1-3 mg/kg body weight in divided doses.
Each 3 ml ampoule contains Diclofenac Sodium 75 mg & each 2 ml ampoule contains Diclofenac Sodium 75 mg and Lidocaine Hydrochloride 20 mg .
Adults: One ampoule once (or in severe cases, twice) daily by intramuscular injection.
Renal colic: One ampoule once daily intramuscularly. A further ampoule may be administered after 30 minutes, if necessary. The recommended maximum daily dose of diclofenac is 150 mg, by any route. The recommended maximum daily dose of lidocaine is 200 mg.
Children: In juvenile chronic arthritis, 1-3 mg of diclofenac/kg body wt. daily in divided doses.
Elderly patients: In elderly or debilitated patients, the lowest effective dosage is recommended, commensurate with age and physical status.