 [ Symptoms ] which two drugs does azor replace for high blood pressure losartan nefidical xl dyazide and bisoprolol  i was taking the above medications and my new doctor changed me to azor and bystolic i ran out of the azor samples today and want to take the 2 medications that i was taking before the change until i can get to the doctor is office tomorrow to get more samples or a prescription  i am pretty sure the bisoprolol was replaced with the bystolic but i do not know which other one bystolic replaced i have some of my old medications left and want to take the two that azor replaced for today [ Disease ] in my opinion you should get a mri of brain done again as it could be re accumulation of fluid or revival of an unremoved tumor not scaring you but you should take it seriously