Dec. 24, 2014 — A drug that treats type 2 diabetes has gotten FDA approval for another use: weight loss. Saxenda is the fourth drug for weight loss OK’d by the agency since 2012. It’s already available in a lower dose as Victoza for type 2 diabetes. Researchers began to study it as an obesity treatment after people on Victoza reported weight loss. Saxenda, like Victoza, is injected daily. It’s approved for people with a body mass index (BMI) of 30, considered obese, or a BMI of 27 with weight-related conditions such as high blood pressure. It’s meant to be used with exercise and a reduced calorie diet.