You are probably on the max of Metformin, that's why you are probably on the other med. If I remember right from when I took it, that around 2000 was the max. I then had to go on insulin. Which isn't all that bad.

What is the Maximum daily dose of Metformin i am on2000 a day as well as glykazide 80 ,160 mg/day but still have a job to control my blood sugar level is there a chance of increasing the dosage without causing complications

Metformin is horrible on your stomach. Gives you diarrhea like none other I'm on 2000 mg daily

I rather go without Metaphormin ... bin a year and ya ...