Bioequivalence of allopurinol and its metabolite oxipurinol in two tablet formutations - Guerra, P; Frias, J; Ruiz Antoran, Belen; Soto, A; Carcas Sansuan, Antonio Javier; Carcas, A; Govantes, C; Montuenga, C; Fernandez, A (Journal Of Clinical Pharmacy And Therapeutics, 2001)