A Double-blind, Parallel Group, Comparative Study of Coadministration AD-4833 and SYR-322

Inclusion Criteria: * Those judged to be capable of understanding and complying with protocol requirements by the investigator or subinvestigator. * Those who can sign and date a written, informed consent form prior to the initiation of any study procedures. Exclusion Criteria: * Those with concurrent serious cardiac disease, serious cerebrovascular disorder, or serious pancreatic or hematological disease etc. * Others who are assessed to be ineligible for the study by the investigator or subinvestigator.