People struggling to lose weight without dieting and exercising may be able to do it soon by using a new "diet shot," scientists told ABC News.
Researchers at Indiana University successfully tested the drug in rodents, but warned it is still years from being tested on humans.
Still, the research is encouraging since the closest thing to an obesity cure is a surgical procedure like gastric bypass.
"There's a global epidemic of obesity," said Richard DiMarchi, chairman of the chemistry department at Indiana University in Bloomington and the study's lead researcher. "Our focus is finding therapies to lower body weight and treat diabetes."
The drug combines two FDA approved medications featuring one that suppresses appetite and one that boosts metabolism.
Scientists claim that in just one week, it can reduce body weight by 25 percent and fat mass by 42 percent.
"I'm excited. It is rodent work that's representative of human obesity," DiMarchi said. "What we're doing is using the proven ability of two hormones to stop appetite and use more calories."