Latest Research Highlights

Basic Ponstan Information

• INN (International Nonproprietary Name): Mefenamic acid
• Brand Names Available In Australia: not specified
• ATC Code: M01AG01
• Forms & Dosages: Capsules 250 mg; Tablets 250 mg and 500 mg; Oral suspension 50 mg/5 ml and 100 mg/5 ml (Asia)
• Manufacturers In Australia: not specified
• Registration Status In Australia: not specified
• OTC / Rx Classification: Prescription-only (Rx) in most jurisdictions; some OTC availability in select Asian markets depending on formulation

Worried about new safety data or whether Ponstan is still a sensible choice for period pain?

Recent randomised and observational studies between 2022 and 2025 revisited fenamate NSAIDs, including mefenamic acid, for acute pain and dysmenorrhoea.

These analyses confirmed that short-term analgesic efficacy of mefenamic acid is comparable to ibuprofen for menstrual cramps.

Some trials reported a faster onset of pain relief when a 500 mg loading dose was used at the start of symptoms.

Safety meta-analyses continue to flag increased gastrointestinal adverse events such as dyspepsia and ulceration when mefenamic acid is used for longer durations.

Long-term use carries a small but non-negligible cardiovascular risk that is dependent on age and comorbidity.

Australian post-market surveillance via TGA adverse event monitoring has occasional reports of GI bleeding and hypersensitivity that are consistent with international data up to 2025.

Pediatric data remain limited, and although Asian paediatric formulations exist, Australian paediatric guidance generally advises caution and limited use.

Practical implication for prescribers and pharmacists is to prefer short courses and the lowest effective dose.

Pharmacist counselling at dispensing is important, particularly in rural areas where follow-up with a GP may be via telehealth.

Data Highlights: Mefenamic acid gives meaningful short-term relief for period pain, but GI adverse events and long-term CV risk require short durations and careful patient selection.

Clinical Effectiveness In Australia

Do Australians get real benefit from Ponstan for period pain and acute aches?

Mefenamic acid produces clinically meaningful pain relief for primary dysmenorrhoea and short-term acute musculoskeletal pain when used as recommended.

The standard regimen endorsed in practice is a 500 mg loading dose followed by 250 mg every six hours as needed.

Australian clinicians usually treat mefenamic acid as an alternative NSAID after ibuprofen, naproxen or paracetamol have failed or are contraindicated.

The Australian Register Of Therapeutic Goods (ARTG) should be checked for currently registered brands before prescribing or dispensing.

Mefenamic acid generics exist internationally, but use in Australia is predominantly prescription-only.

Mefenamic acid is rarely listed on the Pharmaceutical Benefits Scheme for routine subsidised supply, so most patients pay privately unless a local PBS item applies.

Real-world effectiveness is influenced by adherence, comorbidities such as GI, renal or cardiovascular disease, and co-medications.

Community pharmacists at national chains and independent stores routinely counsel patients on risk mitigation and may recommend alternatives for high-risk customers.

Indications And Expanded Uses

Will my doctor prescribe Ponstan only for period pain?

Approved and commonly used indications internationally include acute mild-to-moderate pain and primary dysmenorrhoea.

Standard regimens are a 500 mg initial dose then 250 mg every six hours as needed.

Maximum recommended duration is up to one week for acute pain and two to three days per menstrual period for dysmenorrhoea.

Off-label uses occasionally seen in Australian clinics include short courses for acute dental or postoperative pain when other NSAIDs are unsuitable.

Some clinicians use mefenamic acid as a rescue for selected migraine patients, always with documented rationale and consent.

Imported paediatric suspensions are sometimes used under specialist advice, but this requires informed consent and careful monitoring.

Off-label use should be documented in the patient record and discussed with the patient, especially for those in remote areas who get telehealth e-scripts.

1. Approved Uses: Acute mild-to-moderate pain; Primary dysmenorrhoea.
2. Off-Label Uses: Certain dental/postoperative pains; Short-term migraine rescue in select patients; Specialist-guided paediatric suspension use.

Composition And Brand Landscape

Which brands and pack sizes might arrive at the pharmacy when filling a Ponstan script?

Active ingredient is mefenamic acid, classified under ATC M01AG01 as a fenamate.

Common global forms are 250 mg capsules or tablets and 500 mg tablets, with paediatric suspensions available in some Asian markets.

Pharmacists should confirm formulation, dose and ARTG registration before dispensing.

Storage instructions are standard: keep between 20–25°C, protect from moisture and heat.

Contraindications And Special Precautions

Who should not take Ponstan and what extra care is needed in aged care or Indigenous health settings?

• Absolute Contraindications: Known allergy to mefenamic acid, NSAIDs or salicylates.
• History of NSAID‑induced asthma, urticaria or other allergic-type reactions.
• Active peptic ulcer disease or GI bleeding.
• Severe renal or hepatic impairment.
• Peri-operative pain related to coronary artery bypass graft surgery.

Advise patients that dizziness and drowsiness can occur and that caution is needed for driving and heavy machinery.

Dosage Guidelines

What dose should I take and how do comorbidities change that advice?

Pharmacists should print a clear dosing schedule on the label and offer a written plan for telehealth or rural patients who may have delayed follow-up.

Interactions Overview

Can Ponstan be safely taken with my other medicines and a glass of wine?

Mefenamic acid interacts with several common medicines and should be reviewed against a patient’s medication list at every dispense.

Alcohol increases the risk of gastrointestinal bleeding and should be minimised while taking NSAIDs.

Ask patients to keep an up-to-date medication list on My Health Record to help with electronic reconciliation, especially for rural patients with multiple prescribers.

Cultural Perceptions And Patient Habits In Australia

Do Aussies still say “Ponstan for period pain” and where do they prefer buying it?

Many Australians associate mefenamic acid with period pain due to historical marketing and common prescribing patterns.

Price-sensitive shoppers often compare listings at discount chains and online pharmacies before filling a private script.

Older patients may show loyalty to brand names such as Ponstan or Meftal, while younger patients often accept generics.

Pharmacists remain a trusted source of advice, particularly in community chains and independents where triage and education happen at the counter.

Rural and remote patients increasingly use telehealth e-scripts, which raises the importance of clear written counselling and electronic medicine records.

For Indigenous communities, involve Aboriginal Health Workers and provide plain-language materials while considering transport and cost barriers.

Availability And Pricing Patterns

Where do Australians buy Ponstan and how much might it cost out of pocket?

Mefenamic acid is prescription-only in most jurisdictions and availability in Australia depends on registered suppliers listed in the TGA ARTG.

Consumers commonly compare private prescription prices across Chemist Warehouse, Priceline and online pharmacies.

Discount chains often offer lower out-of-pocket costs for private prescriptions compared with smaller pharmacies.

Telehealth e-prescriptions have simplified ordering, but rural patients may face courier delays or local stock shortages and pharmacists may recommend subsidised alternatives where cost or availability is a problem.

In our online pharmacy, ponstan is available without a prescription, with discreet delivery to Australia in 5-14 days.

Comparable Medicines And Preferences

Is Ponstan better than ibuprofen or is another NSAID a smarter choice for me?

Common alternatives include ibuprofen, naproxen, diclofenac and paracetamol.

Ibuprofen is well-studied, available over the counter and often the first-line choice for many Australians with lower GI risk for short-term use.

Naproxen offers longer duration of action and may suit patients needing sustained relief during a busy day or overnight.

Diclofenac is effective but carries higher cardiovascular concerns for some patients.

Paracetamol is safer for the gut but can be less effective for inflammatory pain associated with dysmenorrhoea.

Choose mefenamic acid where prior response to the drug exists, when dysmenorrhoea is severe and other options have failed, or when a clinician documents specific reasons for its use.

1. Prefer paracetamol or topical NSAIDs in elderly or high-CV/GI risk patients.
2. Consider naproxen for longer pain control or when nocturnal coverage is needed.
3. Reserve mefenamic acid for specific cases with documented benefit or intolerance to other NSAIDs.

Frequently Asked Questions

1. Is Ponstan available on the PBS?

   Generally not routinely PBS-listed; check the current PBS schedule and discuss cost-saving alternatives with your GP or pharmacist.

2. Can I use mefenamic acid for heavy period pain?

   Yes, it is indicated for primary dysmenorrhoea using a 500 mg loading dose followed by 250 mg every six hours for two to three days of the menstrual period.

   Seek GP review if pain is severe, prolonged or associated with other symptoms.

3. Is it safe while breastfeeding?

   Use with caution and consult a GP or pharmacist; limited data advise monitoring the infant for irritability or feeding changes.

4. What if I am on blood thinners?

   Do not start mefenamic acid without medical review due to increased bleeding risk when combined with anticoagulants or antiplatelets.

Guidelines For Proper Use

What should pharmacists say at the counter and when should patients see a GP urgently?

Use a clear pharmacy counselling checklist to ensure safe supply and follow-up.

• Confirm indication and prior response to mefenamic acid.
• Review allergies, history of GI ulceration, cardiovascular disease and kidney or liver problems.
• Check for interacting medicines including anticoagulants, ACE inhibitors, SSRIs and methotrexate.
• Advise the loading dose and maximum duration: 500 mg then 250 mg every six hours; acute use ≤1 week; dysmenorrhoea 2–3 days.
• Warn about dizziness and advise caution when driving or operating heavy machinery.
• Counsel to avoid alcohol during treatment because of increased GI bleeding risk.

Red flags that require GP or emergency referral include black tarry stools, severe abdominal pain, shortness of breath, sudden oedema, markedly reduced urine output or signs of severe allergic reaction.

Storage advice: keep at 20–25°C in the original container and out of reach of children.

For telehealth or rural workflows, document supply on My Health Record and provide a printed dose plan or SMS summary for patients who might have delayed follow-up.

Delivery Across Australia