Tizanidine51322-75-9100 % similar Tizanidine hydrochloride64461-82-193 % similar Clonidine4205-90-760 % similar Clonidine hydrochloride4205-91-856 % similar Apraclonidine66711-21-551 % similar Apraclonidine hydrochloride73218-79-848 % similar 5-Chloro-4-amino-2,1,3-benzothiadiazole115398-34-042 % similar 5-Chloro-4-amino-2,1,3-benzothiadiazole30536-19-742 % similar Brimonidine59803-98-440 % similar Moxonidine75438-57-236 % similar Brimonidine tartrate70359-46-532 % similar Bisantrene78186-34-230 % similar