For type 2 diabetes, how about a shot that’s just once a week? The FDA is considering a medicine that would be a weekly shot. And it’s not insulin. It’s a hormone called albiglutide — to be marketed by Glaxo Smith Kline as Eperzan. “It lowers blood glucose levels and people tend to lose weight, as opposed to insulin where people can gain weight,” says endocrinologist Dr. Patricia Bononi at the Joslin Diabetes Center.