<unk>  (1-butylbiguanide) is an oral antidiabetic drug of the biguanide class, chemically related to metformin and phenformin.<unk>  was marketed by German pharmaceutical company Grünenthal as Silubin.
Buformin
Metformin
Phenformin
Rosiglitazone
Glyburide
Pioglitazone
Liraglutide
Exenatide