I Had Diabetes More Than 10 Years Before I Take

I had diabetes more than 10 years
before I take GLIPIZIDE XL 1.25MG ONCE A DAY THIS ONE CONTROL MY SUGAR VERY GOOD MY SUGAR MOSTLY LIKE 80 TO 100 BUT SOME TIME THE SUGAR TOO LOW LIKE 60 SO DOCTOR CNANGE MY MADICATION
NOW I TAKE TRADJENTA 10 MG A DAY BUT MOST TIME SUGAR IS 120 ( I TAKE THIS ONE WITH ACTOS 15MG A DAY) THIS IS EMPTY CHECK BLOOD SUGAR
SO I SAW YOU HAVE ANOTHER ONE SAME GROUP MADICATION JANUVIA
IS THAT ONE STRONGER THAN TRADJENTA ??
SO WHAT I CAN DO FOR IT
HOPE PLEASE
sunny HUANG