Mefenamic acid oral
Mefenamic Acid dosages are mentioned below
In Paediatrics
Recommended dosage based on body weight
Recommended dosage based on age group
Mefenamic acid suspension 100 mg/5 ml
- 6 months to 1 year: 2.5 ml three times daily.
- 2 to 4 years: 5 ml three times daily.
- 5 to 8 years: 7.5 ml three times daily.
- 9 to 12 years: 10 ml three times daily.
Infants over 6 months to children 12 years
Mefenamic acid suspension 50 mg/5 ml is licensed in infants over 6 months.
Infants over 6 months 25 mg/kg of bodyweight daily in divided doses or:
The following doses can be used in specific age ranges:
9 years to 12 years: four 5 ml spoonfuls.
5 years to under 9 years: three 5 ml spoonfuls
2 years to under 5 years: two 5 ml spoonfuls
6 months to under 2 years: one 5 ml spoonfuls
Doses may be repeated as necessary, up to three times daily.
Apart from the treatment of Still's disease, therapy should not be continued for longer than 7 days.
Children aged 12 to 18 years and Adults
The recommended dose is 500 mg three times daily.
In menorrhagia to be administered on the first day of excessive bleeding and continued according to the judgement of the physician.
In dysmenorrhoea to be administered at the onset of menstrual pain and continued according to the judgement of the physician.
For Adults
Initial dose: 500 mg orally once
Following initial dose: 250 mg orally every 6 hours as needed or 500mg every 8 hours.
Duration of therapy: Usually not to exceed 1 week
Pregnancy and Lactation
Pregnancy
Mefenamic acid is contraindicated in the third trimester of pregnancy.
Lactation
Mefenamic acid is contraindicated in breastfeeding.
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