Drug Identity
Active Ingredient
Mefenamic Acid
Drug Class
Other Analgesics And Antipyretics
Chemical Class
Anthranilic Acid
Pharmacological Group
on the basis of mechanism of action and also cl...
What is Mefnac?
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 GI bleeding and ulceration, history of GI bleeding or perforation related to previous NSAID therapy, history of recurrent GI haemorrhage or ulceration (two or more distinct episodes), inflammatory bowel disease, severe heart failure, severe renal impairment, Aspirin/anti- inflammatory induced allergy
Important Warnings
Cardiac impairment (NSAIDs may impair renal function), allergic disorders, cerebrovascular disease, coagulation defects, acute porphyrias, connective-tissue disorders, Crohns disease (may be exacerbated), elderly, epilepsy, heart failure, ischaemic heart disease, peripheral arterial disease, risk factors for cardiovascular events, ulcerative colitis (may be exacerbated), uncontrolled hypertension, hepatic impairment
Side Effects
Diarrhoearashes (withdraw treatment)stomatitisGI bleeding and ulcerationGI disturbancesfatigueparaesthesiaRare: Angioedemablood disordersbronchospasmcolitisCrohns diseasedepressiondizzinessdrowsiness
Drug Interactions
Anticoagulants
quinolones
sulphonylureas
hydantoins
Pregnancy & Lactation
Pregnancy
Avoid unless the potential benefit outweighs the risk. Avoid during the third trimester
Lactation
Caution advised
Storage
Tab, Caps Store Below 40°C. Protect from Sunlight and Moisture.
Price Intelligence
Rs 40
DVAGO observed price · as of 30 July 2026
No approved ceiling matched to this exact pack and strength.
Prices across sources
DVAGORs 40
Should you consider an alternative?
Other options containing Mefenamic Acid, and what they are not.You pay Rs 7 more than the cheapest equivalent
Identical active ingredient at the same strength. Cheapest per unit first.
Ponstan
250mg
Rs 33.4Rs 3.34/unit
Lowest price per unitLCI Limited
Zopan
250Mg
Rs 34Rs 3.4/unit
No DRAP alertsPHARMATEC PAKISTAN (PVT) LTD.
Ponstan
250Mg
Rs 37.1Rs 3.71/unit
PFIZER LABORATORIES
Gardan
250mg
Rs 234
SANOFI AVENTIS (PAKISTAN) LTD.
Mefirant
250mg
Rs 298.45 ceiling
Amarant Pharmaceuticals Private Limited
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
Company
234
brands
189
molecules
2
alerts