Validated LC-MS/MS method for determination of Alverine and one of its hydroxy metabolites in human plasma along with its application to a bioequivalence study.

The present research work involves a first of its kind rapid and sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method developed and validated for simultaneous analysis of Alverine (ALV) and one of its hydroxy metabolites, para hydroxy Alverine (PHA) in human plasma. The analytes were extracted from the matrix using a simple solid-phase extraction procedure. Mebeverine was used as the internal standard for both analytes.