Excretion After oral dosing of radiolabeled methylphenidate in individuals, about 90% from the radioactivity was recovered in urine. The primary urinary metabolite was ritalinic acid, accounting for roughly 80% of your dose.Li?u dùng có th? s? thay ??i tùy theo m?c ?? ti?n tri?n c?a b?nh, và th? tr?ng c?a ng??i b?nh.The result of delocalization