Stable liquid parenteral parecoxib formulation

摘要

A parenterally deliverable pharmaceutical composition comprises a water soluble parecoxib salt, in dissolved and/or solubilized form in a solvent liquid that comprises water and one or more nonaqueous solubilizer(s). Valdecoxib formed by conversion of parecoxib is solubilized by the nonaqueous solubilizer(s), which are substantially inert with respect to such conversion. The composition has parecoxib salt stabilizing means for inhibiting precipitation of parecoxib free acid. The composition is storage stable and is suitable for parenteral administration to treat a COX-2 mediated condition or disorder.