Insulin was found to more effectively control blood sugar levels than pills in dealing with diabetic patients during a study.

A research sponsored by Novo Nordisk A/S and Roche Holding AG and the government of China showed that in less than six days, 95 percent of insulin-user diabetics went back to their normal blood sugar levels. Those who took the metformin, the generic name of Glucophage pill of Bristol-Myers Squibb Co., reached their normal level after 9.3 days.

Bloomberg, quoting Jianping Weng, professor at the Sun Yat-Sen University in Guangzhou, China and lead author in the editorial that went with the study, reported insulin shots may give pancreas of diabetic patients a "rest."

The Denmark-based Novo Nordisk A/S is the world's largest insulin maker.

Produced by the pancreas, insulin is needed by the body in its process of moving the blood sugar (glucose) - a source for the body to move, grow, and repair -- towards the individual cells from the bloodstream, said www.fda.gov.

However, type 1 diabetics produce no insulin. Those with type 2 diabetes do not always produce the enough amount of insulin the pancreas automatically produce to move glucose into the body's cells, www.fda.gov added.