Dayton is a national class of new drugs, a new generation of insulin sensitizers. It is hypoglycemic steady and lasting, can protect islet B cells, protect the kidneys, effectively reduce and improve cardiovascular complications, easy to take, It can be used in combination with any one or several non-thiazolidinedione hypoglycemic agents. In 2004 the United States hypoglycemic prescriptions second only to metformin, with global sales of up to 1.8 billion US dollars.