-Ankylosing spondylitis: Oral: 100 mg twice daily. Or rectal suppository: Insert one suppository rectally in the morning and evening (twice daily) or at bedtime (once daily). May supplement with divided oral dosing up to a combined rectal/oral maximum of 200 mg daily; for severe rheumatic activity or an inadequate response to lower dosages, a combined rectal/oral dose up to 300 mg daily may be considered. -Rheumatoid arthritis or osteoarthritis: Oral: Immediate release: 50 mg 4 times daily or 75 mg 3 times daily; maximum: 300 mg/day, in case of using extended release formulations: 200 mg once daily; maximum: 200 mg/day, in case of using rectal suppository: Insert one suppository rectally in the morning and evening (twice daily) or at bedtime (once daily). May supplement with divided oral dosing up to a combined rectal/oral maximum of 200 mg daily; for severe rheumatic activity or an inadequate response to lower dosages, a combined rectal/oral dose up to 300 mg daily may be considered. -Dysmenorrhea associated pain: Oral: Immediate release: 25 to 50 mg every 6 to 8 hours up to a maximum of 300 mg/day. -Intramuscular injection is indicated in adults (over 15 years), for short-term treatment of: severe inflammatory rheumatism, acute back pain, acute pain related to irritation of a nerve, such as sciatica, intense pain, attacks of renal colic (painful attacks in the lower back following a urinary tract blockage): The dosage varies from 1 to 3 ampoules per day according to the indication. The duration of treatment is 2 to 3 days. -Pediatric dosing: -Antipyretic: Infants starting from 6 months and in children up to 11 years: The usual dose is 0.5 mg/kg/intake, 3 to 4 times daily, without exceeding 2 mg/kg/day. Duration of treatment: Usually 2 to 3 days. If the fever persists for more than 3 days, or in case of insufficient efficacy or occurrence of any other signs, do not continue treatment without the advice of your doctor.