Mefenamic Acid
Mefenamic acid is a nonsteroidal anti-inflammatory drug (NSAID) with analgesic, anti-inflammatory, and antipyretic properties. It works by inhibiting cyclooxygenase (COX) enzymes, reducing the synthesis of inflammatory prostaglandins.
Dosage by Body Weight
Adults and pediatric patients over 14 years: Initial dose of 500 mg, followed by 250 mg every 6 hours as needed. Usually taken with food to reduce stomach upset. Treatment should not exceed 7 days.
- Body Weight
- Below 5 kg
- Dose
- Not recommended
- Frequency
- Do not use
- Tracking Notes
- Safety and efficacy in infants under 6 months or under 5 kg have not been established.
- Body Weight
- 5-7 kg
- Dose
- 32.5 mg to 45.5 mg (approx. 3.25 to 4.5 mL of 50mg/5ml suspension)
- Frequency
- Three times daily (every 8 hours) with food
- Tracking Notes
- Only for infants over 6 months. Administer with food to prevent gastrointestinal discomfort.
- Body Weight
- 8-10 kg
- Dose
- 52 mg to 65 mg (approx. 5.2 to 6.5 mL of 50mg/5ml suspension)
- Frequency
- Three times daily (every 8 hours) with food
- Tracking Notes
- Ensure child is well-hydrated. Do not exceed prescribed duration.
- Body Weight
- 11-15 kg
- Dose
- 71.5 mg to 97.5 mg (approx. 7.1 to 9.7 mL of 50mg/5ml suspension)
- Frequency
- Three times daily (every 8 hours) with food
- Tracking Notes
- Dose is calculated based on 6.5 mg/kg per dose. Consult a doctor before use.
- Body Weight
- 16-20 kg
- Dose
- 104 mg to 130 mg (approx. 10.4 to 13 mL of 50mg/5ml suspension)
- Frequency
- Three times daily (every 8 hours) with food
- Tracking Notes
- For children over 2 years of age. Treatment duration should normally not exceed 7 days.
| Body Weight | Dose | Frequency | Tracking Notes |
|---|---|---|---|
| Below 5 kg | Not recommended | Do not use | Safety and efficacy in infants under 6 months or under 5 kg have not been established. |
| 5-7 kg | 32.5 mg to 45.5 mg (approx. 3.25 to 4.5 mL of 50mg/5ml suspension) | Three times daily (every 8 hours) with food | Only for infants over 6 months. Administer with food to prevent gastrointestinal discomfort. |
| 8-10 kg | 52 mg to 65 mg (approx. 5.2 to 6.5 mL of 50mg/5ml suspension) | Three times daily (every 8 hours) with food | Ensure child is well-hydrated. Do not exceed prescribed duration. |
| 11-15 kg | 71.5 mg to 97.5 mg (approx. 7.1 to 9.7 mL of 50mg/5ml suspension) | Three times daily (every 8 hours) with food | Dose is calculated based on 6.5 mg/kg per dose. Consult a doctor before use. |
| 16-20 kg | 104 mg to 130 mg (approx. 10.4 to 13 mL of 50mg/5ml suspension) | Three times daily (every 8 hours) with food | For children over 2 years of age. Treatment duration should normally not exceed 7 days. |
Formulation
Purpose
Used for the short-term treatment of mild to moderate pain, including muscular pain, traumatic pain, dental pain, headache, postoperative pain, and active primary dysmenorrhea (menstrual cramps).
Generic Name
Mefenamic AcidBranded Drug Names
Mefenamic Acid is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:
Scheduled Drug
Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.