Alsachim, a Shimadzu Group Company, developed DOSIMYCO, a LC-MS reagent kit for the quantification of mycophenolic acid and its glucuronide in plasma. Based on MRM technology and the use of stable labeled internal standards (with deuterium and carbon-13) developed by Alsachim, the DOSIMYCO kit enables simultaneous quantification of mycophenolic acid (MPA) and its glucuronide (MPA-G).