Ponstan Forte is a prescription medication containing 500mg of Mefenamic Acid per tablet. This product comes in a pack of 20 filmcoated tablets and is manufactured by Pfizer. Ponstan Forte contains Mefenamic Acid as its active ingredient. Each tablet contains 500mg of the medication and comes in a filmcoated form for easier swallowing. The package contains 20 tablets. As this is a prescription medication, it should only be taken under the direction and supervision of a healthcare provider.