Hi Doctor, I Am Taking Ciplar LA 40 And Tazloc

Hi Doctor, I am taking Ciplar LA 40 and Tazloc 20mg to reduce blood pressure and MVP. Doctor prescribed this medicine for 1 month. Now since last week i am unable to sleep. Doctor has prescribed me Trika 0.5 mg half once per day to get sleep. Now my question is, is it because of this medicine i am suffering insomnia? Will it be permanent now or will i get normal sleep once i stop using medicine? If i take trika daily will i get used to the medicine even after stopping the medicine? Please help