Are Ativan And Aztor Advisable For High Sugar Levels?

Good Morning sir/mam:
My father is a Diabetic patient.now he is taking the following tablets...i want to know is it correct for him..
1.Pionorm-gm --- before food(morning and night), 2.Acarbose-Glucobay-50---with food(morning),
3. istamet 50 mg---before food(night),
4.pregastar plusSR 75,
5.Aztor 10,
6.Ativan 2mg these tablets are after food(night). his sugar level is around 300 mg/dl