Ponstan Forte for Period Pain: Uses, Dose & Safety (Pakistan)

Ponstan Forte (Mefenamic Acid 500 mg) is the most-prescribed period pain tablet in Pakistan. This guide explains adult dosing, side effects, why it works for menstrual cramps, when to avoid it, and how it compares with Brufen and Panadol.

By PakVita Editorial Team· Editorial Team · AI-assisted drafting with editorial review· 6 min read· Published 17 Jul 2026· Last reviewed 16 May 2026
Ponstan Forte for Period Pain: Uses, Dose & Safety (Pakistan)
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Quick Answer

Ponstan Forte is Pfizer Pakistan's brand of Mefenamic Acid 500 mg, a non-steroidal anti-inflammatory drug (NSAID) most commonly used in Pakistan to relieve period cramps (dysmenorrhoea), heavy menstrual bleeding, headache, and dental pain. Standard adult dose: 500 mg three times a day after food, ideally starting 1–2 days before the expected period. Maximum 3 days per cycle. Avoid in pregnancy, asthma, stomach ulcers and severe kidney disease.

If you walk into any Pakistani pharmacy and say period mein dard ho raha hai, the pharmacist will hand you Ponstan Forte. Mefenamic acid is uniquely effective for menstrual cramps because it both blocks prostaglandins (the chemicals that cause uterine contractions) and reduces uterine blood flow. But it is still an NSAID, and the same precautions that apply to Brufen apply here: not on an empty stomach, not in pregnancy, and not for someone with asthma or a stomach ulcer.

What is Ponstan Forte (Mefenamic Acid)?

Ponstan Forte is registered with DRAP and manufactured in Pakistan by Pfizer. The 'Forte' strength is 500 mg per tablet; the plain Ponstan is 250 mg. Mefenamic acid belongs to the fenamate class of NSAIDs and works by inhibiting both cyclooxygenase enzymes (COX-1 and COX-2), reducing prostaglandin production in the uterus, the joint linings, and the gut. Its dual prostaglandin-blocking + anti-fibrinolytic action is what gives it the edge in heavy periods over plain ibuprofen.

Ponstan Forte Uses: Period Pain (Mahwari ka Dard), Headache, Dental Pain

  • Primary dysmenorrhoea (period cramps without an underlying condition).
  • Heavy menstrual bleeding (menorrhagia), reduces blood loss by 25–40%.
  • Headache and migraine attacks (short-term).
  • Dental pain after extraction or filling.
  • Mild to moderate musculoskeletal pain (sprains, sports injuries).
  • Post-operative pain (short courses).

Start before the cramps start

Pakistani gynaecologists routinely advise women to begin Ponstan Forte 1–2 days before the expected period date, not after the cramps have already begun. Pre-emptive dosing prevents prostaglandin levels from rising in the first place, and is far more effective than chasing pain that has already started.

Ponstan Forte Dosage for Adults

  • Adults: 500 mg every 8 hours (three times a day) after food.
  • Maximum daily dose: 1,500 mg (3 tablets).
  • Maximum duration per cycle: 3 days.
  • Children: not recommended under 14 years for routine use.
  • Take with a full glass of water; never on an empty stomach.

Side Effects of Ponstan Forte (Mumkin Saaid Effects)

Common, usually mild side effects: stomach upset, nausea, mild heartburn; mild diarrhoea (a known mefenamic acid effect, more than other NSAIDs); dizziness or headache; mild drowsiness. Less common but serious: black or tarry stools (GI bleeding); persistent abdominal pain; rash, swollen lips, or breathing difficulty (allergic); reduced urine output (kidney stress); and severe diarrhoea (rare but characteristic, stop the tablet).

Pakistani women asking the wrong question

It is not dangerous for an unmarried woman to take Ponstan Forte, there is no truth to the social rumour that NSAID painkillers affect future fertility or 'delay' marriage prospects. What is dangerous is suffering through severe pain every month when safe, effective treatment exists. If your periods are so painful you miss work or school, see a gynaecologist to rule out endometriosis or fibroids.

Ponstan Forte vs Brufen vs Panadol for Period Pain

TabletBest forEffectiveness for crampsStomach risk
Ponstan Forte (Mefenamic 500 mg)Period pain + heavy bleeding★★★★★, also reduces flowModerate
Brufen (Ibuprofen 400 mg)Period pain alone★★★★, strong prostaglandin blockModerate
Naproxen (Synflex 250 mg)Long-lasting cramp relief★★★★, 12-hour effectModerate
Panadol (Paracetamol 500 mg)Mild cramps, pregnancy★★, minimal anti-inflammatory effectVery low
Combination (Panadol + Brufen)Severe cramps short-term★★★★★ when alternated 3-hourlyModerate (NSAID risk)

Who Must NOT Take Ponstan Forte

  • Pregnant women, especially third trimester (NSAIDs close foetal ductus arteriosus).
  • Breastfeeding mothers (small amounts pass into milk, use paracetamol).
  • Active stomach ulcer, or history of GI bleeding.
  • Severe asthma or aspirin-induced asthma.
  • Chronic kidney disease or recent kidney injury.
  • Children under 14 years for routine use.
  • Taking warfarin, methotrexate, or lithium without doctor supervision.

Ponstan Forte Price in Pakistan (2026)

Ponstan Forte 500 mg retails for approximately Rs. 250–320 per strip of 10 tablets in 2026. Generic mefenamic acid (Mefnac, Mefadolan, Fenac-M) costs Rs. 80–150 per strip and is equally effective, DRAP-bioequivalent. Most Pakistani pharmacies stock all variants; emeds.pk and dawaai.pk often offer 5–10% discounts.

Related medicines & tools

Medicine Reference

Brufen Tablet (Ibuprofen)

Alternative NSAID for period pain, equally effective for cramps alone.

View encyclopedia entry

Medicine Reference

Panadol

Paracetamol, first choice in pregnancy, gentler on the stomach.

View encyclopedia entry

Medicine Reference

Synflex (Naproxen)

12-hour NSAID, fewer doses needed for stubborn cramps.

View encyclopedia entry

Frequently Asked Questions

Is Ponstan Forte safe for unmarried girls?

Yes, completely. There is no medical reason an unmarried girl should avoid mefenamic acid for period pain. It does not affect fertility, hormones, or future pregnancy. The only contraindications are pregnancy, stomach ulcer, asthma, or kidney disease, not marital status.

How quickly does Ponstan Forte work for cramps?

Pain relief usually begins within 30 to 60 minutes and peaks at 2 hours. For best results, take it at the first sign of cramps, or even 24 hours before your expected period if cycles are regular.

Can Ponstan Forte stop my period?

No, Ponstan Forte reduces menstrual blood flow and pain but does not stop or delay the period. Reduction of 25–40% in heavy bleeding is typical with the standard 3-day course.

Can I take Ponstan Forte daily?

Not long-term. The standard course is 3 days per cycle. Daily use beyond 7 days requires medical supervision because of the risks of GI bleeding, kidney injury, and rebound headache.

Is Ponstan Forte safe in pregnancy?

No. Like all NSAIDs, mefenamic acid is unsafe in pregnancy, especially the third trimester, when it can close the foetal ductus arteriosus prematurely. Use paracetamol instead.

Can I take Ponstan Forte and Brufen together?

No. Both are NSAIDs and taking them together triples the risk of stomach ulcer and bleeding without giving extra pain relief. Pick one, not both.

What is the difference between Ponstan and Ponstan Forte?

Ponstan is 250 mg mefenamic acid; Ponstan Forte is 500 mg. The Forte strength is the standard dose for adults with period pain; the lower strength is for adolescents or sensitive adults.

Can Ponstan Forte cause diarrhoea?

Yes, diarrhoea is a known mefenamic acid effect, more than with other NSAIDs. If severe diarrhoea develops, stop the tablet and switch to ibuprofen or naproxen for the rest of the cycle.

Can I drink chai or coffee with Ponstan Forte?

Yes, but always take the tablet after food, not with empty-stomach chai. Caffeine slightly increases stomach acid, so heavy coffee while on a 3-day Ponstan course can worsen acidity.

Should I see a doctor for severe period pain?

Yes, if your pain is severe enough to miss school or work despite taking Ponstan Forte correctly, or if periods are heavy enough to soak through a pad every hour, see a gynaecologist. Endometriosis, fibroids, and adenomyosis are common in Pakistani women and often go undiagnosed for years.

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    Medical disclaimer

    Ye article sirf educational maqsad ke liye hai. Personal diagnosis, dosing, aur treatment decision ke liye doctor se mashwara karein.

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