Drug Identity
Active Ingredient
Mefenamic Acid
Drug Class
Antiinflammatory And Antirheumatic Products
Chemical Class
Anthranilic Acid
Pharmacological Group
on the basis of mechanism of action and also cl...
What is Fengesic?
Uses
Mefenamic acid is a nonsteroidal anti-inflammatory drug (NSAID) that is used short-term (7 days or less) to treat mild to moderate pain i...
How It Works
Chemical Class
Anthranilic Acid
Pharmacological Group
on the basis of mechanism of action and also classified in Analgesics and Anti-inflammatory Agents pharmacological group
It is of Synthetic origin and belongs to Anthranilic Acid. It belongs to Cyclo-oxygenase inhibitor pharmacological group on the basis of mechanism of action and also classified in Analgesics and Anti-inflammatory Agents pharmacological group. The Molecular Weight of Mefenamic Acid is 241.30. Its pKa is 4.2.
How to Take It
1
Adult · PO
500 mg — 8 hourly
2
Adult
Scraped Dose
Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the lowest dose that is effective in treati
3
Child · Oral
25 mg/kg — 8 hourly
Safety Alerts
Active or recurrent GI bleeding or ulceration, cerebrovascular disease, history of GI bleeding or GI perforation related to previous NSAID therapy, history of recurrent GI haemorrhage, ischaemic heart disease, heart failure, peripheral arterial disease, moderate to severe renal impairment, aspirin/anti-inflammatory induced allergy
Important Warnings
Renal, hepatic or cardiac impairment
GI disease, allergic disorders, avoid in acute porphyrias, coagulation defects, connective-tissue disorders, Crohns disease (may be exacerbated), elderly, oedema, risk factors for cardiovascular events, ulcerative colitis (may be exacerbated), uncontrolled hypertension
Side Effects
Angioedemablood disordersbronchospasmcolitisCrohns diseasedepressiondiarrhoeadizzinessdrowsinessfluid retentionGI bleeding and ulcerationGI disturbanceshaematuriaheadachehearing disturbances
Drug Interactions
Anticoagulants
thiazide diuretics
quinolones.
Pregnancy & Lactation
Pregnancy
Caution advised, risk cannot be ruled out.
Lactation
Caution advised
Storage
Tab, Caps Store Below 40°C. Protect from Sunlight and Moisture.
Price Intelligence
Rs 79.13
DRAP approved maximum price · per 90ml · approved 30 Jul, 2026
No retail price observed for this pack. Retailers may not exceed the approved maximum.
Prices across sources
No retail prices recorded
Should you consider an alternative?
Other options containing Mefenamic Acid, and what they are not.
These contain this ingredient plus others. They are different medicines — do not swap.
Ponstan
50mg
Rs 20
Pfizer Laboratories (Pvt) Ltd.
Medibrufen
5ml
Rs 31.68
Mediate Pharmaceutical Pvt Ltd
Ponstan
250mg
Rs 33.4Rs 3.34/unit
LCI Limited
Zopan
250Mg
Rs 34Rs 3.4/unit
No DRAP alertsPHARMATEC PAKISTAN (PVT) LTD.
Aksofen
100mg/5ml
Rs 35.17
No DRAP alertsAKSON PHARMACEUTICALS (PVT) LTD.
Ponstan
250Mg
Rs 37.1Rs 3.71/unit
PFIZER LABORATORIES
Mefnac
250mg
Rs 40
EFROZE CHEMICAL INDUSTRIES (PVT) LTD.
Brufen
200Mg
Rs 41.6Rs 4.16/unit
Below approved ceilingABBOTT LABORATORIES (PAK) LTD
Ordered by lowest price per unit where a pack size is known, then by price. Order is never affected by sponsorship. Not medical advice — confirm any change with your pharmacist or doctor.
For pharma professionalsCompany, market and opportunity intelligence
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