Biguanide can refer to a molecule, or to a class of drugs based upon this molecule. Biguanides can function as oral antihyperglycemic drugs used for diabetes mellitus or prediabetes treatment. They are also used as antimalarial drugs. The disinfectant polyaminopropyl biguanide features biguanide functional groups. Examples of biguanides: , Metformin - widely used in treatment of diabetes mellitus type 2 combined with obesity , Phenformin - withdrawn from the market...