medicines and brought in control. Is it true that using the same medicines for long time will not usefull to contorl the diabetes. particularly insulin . I have started with Huminsiulin 30/70 then switch to Human Mixtard 30/70 and now Lintus solostar(during bed time ) . Now I am using all in onday like 15-10-15 units of all the above three insulins in morning , afternoon and night . Is it advisable ??