- oxythiamine
- oxy·thi·a·mine -'thī-ə-mən, -.mēn also oxy·thi·a·min -mən n a chemical compound C12H16ClN3O2S that differs from thiamine in having the amino group in the pyrimidine ring replaced by a hydroxyl group and that is a thiamine antagonist producing symptoms of thiamine deficiency
Medical dictionary. 2011.