Mefenamic acid-d4

Mefenamic acid-d4 is a deuterium labeled Mefenamic acid. Mefenamic acid is a non-steroidal anti-inflammatory agent, acting as a competitive inhibitor of hCOX-1 and hCOX-2, with IC50s of 40 nM and 3 μM for hCOX-1 and hCOX-2, respectively[1][2].