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Structure of Mefenamic Acid

Mefenamic acid treats pain associated with menstruation. The FDA categorizes mefenamic acid as a prescription non-steroidal anti-inflammatory drug (NSAID).

  1. Description

    • Mefenamic acid appears as a white to grayish white microcrystalline powder. Its molecular formula is C15H15NO2.

    Structure

    • The structure of mefenamic acid consists of two benzene rings connected to each other via a nitrogen atom. The benzene rings consist of six carbon atoms in the shape of a hexagon. A carboxylic acid group (-COOH) is bound to one benzene ring. Two methyl groups ( -CH3) are bound to the second benzene ring.

    Significance

    • The structure of mefenamic acid allows it to blocks cell receptors that mediate inflammation, which results in the temporary reduction of pain.

    Warning

    • Patients who have had an allergic reaction to aspirin or other NSAIDs should not use mefenamic acid, as they share similar structural features.

    Side Effects

    • Mefenamic acid can cause side effects such as abdominal pain, diarrhea, anemia, dizziness, and vomiting.

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