Ponstan (Mefenamic Acid) Customer Reviews


Rx Prescription Required    RxFormulation : Capsule

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Generic alternative for Ponstan

Mefenamic Acid

Rx Prescription Required    RxFormulation : Capsule

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Mefenamic acid is employed to provide short-term relief for mild to moderate pain stemming from a range of conditions, including headaches, dental discomfort, menstrual cramps, and muscle aches. Classified as a nonsteroidal anti-inflammatory drug (NSAID), mefenamic acid operates by inhibiting the production of specific natural substances in the body that contribute to inflammation. This action effectively reduces swelling, alleviates pain, and mitigates fever symptoms.

Uses and Dosage

Administer this medication orally according to your doctor’s guidance, generally four times daily. Consume the medication with a full glass of water (8 ounces/240 milliliters), unless otherwise specified by your doctor. Refrain from reclining for at least 10 minutes after ingesting the medication. If stomach discomfort arises during medication intake, consume it alongside food or milk.

Exercise caution and avoid combining mefenamic acid with antacids unless directed by your doctor. Some antacids could potentially influence the absorption of mefenamic acid by the body.

The prescribed dosage and treatment duration are contingent upon your medical condition and response to the medication. To minimize the risk of stomach bleeding and other potential side effects, use the lowest effective dose of this medication for the shortest appropriate duration. Avoid escalating your dose or extending usage beyond the prescribed parameters. Typically, this medication should not be employed for periods exceeding 7 days at a time. Engage in a discussion about the potential advantages and disadvantages of this treatment with your doctor or pharmacist.

For those utilizing this drug on an “as needed” basis (rather than a regular schedule), it’s worth noting that pain medications are most efficacious when administered at the initial onset of pain. Delaying intake until pain intensifies might impede the medication’s effectiveness.

If you are employing this medication to alleviate pain associated with menstruation, initiate your course with the onset of your period or when pain first emerges. Usually, administration is necessary only during the initial 2 to 3 days of your menstrual cycle.

Side Effects

Some side effects may occur that usually do not need medical attention:

  • abdominal pain
  • constipation
  • decreased or loss of appetite
  • diarrhea
  • dizziness
  • drowsiness
  • gas
  • headache
  • heartburn
  • lightheadedness
  • nausea
  • nervousness
  • trouble sleeping
  • vomiting

Inform your healthcare provider immediately if you experience any serious side effects:

  • blurred vision or any change in vision
  • changes in hearing
  • ringing or buzzing in the ears
  • decreased interest in activities
  • poor concentration
  • thoughts of suicide
  • fever or chills
  • headache
  • listlessness
  • prolonged dizziness
  • severe diarrhea
  • shortness of breath
  • stiff neck


Before initiating mefenamic acid usage, communicate any known allergies to your doctor or pharmacist, including allergies to aspirin, other NSAIDs, or any other allergens. This product might contain inactive constituents capable of triggering allergic reactions or other complications.

Prior to utilizing this medication, share your medical history with your doctor or pharmacist, particularly if you have a history of asthma, bleeding or clotting disorders, blood disorders (like anemia), nasal polyps, heart disease, elevated blood fat levels (cholesterol/triglyceride), high blood pressure, liver disease, stroke, swelling (edema), or stomach/intestinal/esophagus issues.

The use of NSAID medications, including mefenamic acid, can occasionally lead to kidney problems. The risk is amplified if you’re dehydrated, have heart failure or kidney disease, are an older adult, or are taking specific medications. To prevent dehydration, consume fluids as directed by your doctor, and promptly notify your doctor if you experience pink/bloody urine or any abnormal changes in urination.

This medication might induce dizziness, drowsiness, or blurred vision. Alcohol or marijuana can exacerbate these effects. Refrain from driving, operating machinery, or engaging in activities requiring alertness or clear vision until you can do so safely.

This medication can result in stomach bleeding. The combination of daily alcohol and tobacco use, particularly in conjunction with this medication, can heighten the risk of stomach bleeding. It’s advisable to curtail alcohol consumption and quit smoking. Seek guidance from your doctor or pharmacist regarding the amount of alcohol that can be safely consumed.

This medication might render you more sensitive to sunlight. Minimize sun exposure, and avoid tanning booths and sunlamps. Use sunscreen and protective clothing when outdoors. In the event of sunburn or skin blisters/redness, inform your doctor promptly.

When utilizing this medication, older adults might face a heightened risk of stomach/intestinal bleeding, kidney issues, heart attacks, and strokes.

For women of childbearing age considering this medication, discuss potential benefits and risks with their doctor(s). Inform your doctor if you are pregnant or planning to become pregnant. Usage of this medication during pregnancy can adversely affect an unborn baby and disrupt normal labor and delivery. It is not recommended for use from the 20th week of pregnancy until delivery. If usage is necessary between the 20th and 30th weeks of pregnancy, opt for the lowest effective dose for the shortest feasible duration. Avoid using this medication after the 30th week of pregnancy.

This drug can enter breast milk. Consult your doctor before breastfeeding.

Form and Strength

Ponstan is available in the following forms and strengths:

  • Ponstan capsule:

    • 250mg
  • mefenamic acid capsule:

    • 250mg


How long does it take for Ponstan to be effective?

Ponstan will normally take between 2 and 4 hours to work. It is normally effective for up to 8 hours per dose.

Is Ponstan a good anti-inflammatory?

Ponstan has demonstrated analgesic, anti-inflammatory and antipyretic properties.


  1. https://www.medicinedirect.co.uk/womens-health/period-pain/ponstan#:~:text=Clinical%20research%20has%20found%20that,to%208%20hours%20per%20dose
  2. https://www.myvmc.com/drugs/ponstan/#:~:text=Ponstan%20containing%20mefenamic%20acid%20belongs,anti%2Dinflammatory%20and%20antipyretic%20properties
  3. https://patient.info/medicine/mefenamic-acid-for-pain-and-inflammation-ponstan
  4. https://www.webmd.com/drugs/2/drug-11586/mefenamic-acid-oral/details
  5. https://www.medbroadcast.com/drug/getdrug/ponstan#adverseeffects
  6. https://www.mayoclinic.org/drugs-supplements/mefenamic-acid-oral-route/side-effects/drg-20070790?p=1

Additional information

Generic name:

Mefenamic Acid





Quantities Available:


Can Drug Store has provided information from third parties intended to increase awareness and does not contain all the information about Ponstan (Mefenamic Acid). Talk to your doctor or a qualified medical practitioner for medical attention, advice, or if you have any concerns about Ponstan (Mefenamic Acid).