is one of the safest drugs know to man. 1500-2000mg is generally the maximum limit used but if it's under proper guidance of your doctor, the dose you are taking is alright. You need not worry about lactic acidosis
as long as you are under regular care of your physician and not self medicating.
Januvia has something called as Sitagliptin
which is the only diabetic drug acting on the gluagon (rest all act directly or indirectly on Insulin
). So it's a good drug, if affordability is not an issue.