Price/Tablet: $0.40
Generic Name: Metformin
Manufacturer: Various
Brand names: Glucophage, Riomet, Fortamet, Glumetza, Obimet, Diabex, Diaformin, and others

Metformin is an oral anti-diabetic drug from the biguanide class. It is the first-line drug of choice for the treatment of type 2 diabetes, particularly in overweight and obese people and those with normal kidney function, and evidence suggests it may be the best choice for people with heart failure.