CapAdult & childn >12 yr 50-100 mg not less often than every 4 hr; total daily dose of 400 mg by mouth is usually sufficient. Inj 50-100 mg every 4-6 hr. Post-op pain 100 mg initially then 50 mg every 10-20 min if necessary. Max: 400 mg daily.
Head injury, increased intracranial pressure. Resp disorder, patients prone to convulsion disorders or in shock. May impair ability to drive or operate machinery. Severe renal & hepatic impairment. Pregnancy & lactation.