Send us Fan Mail You know them by their brand names, like Ozempic, Trulicity, or Mounjaro. They're the GLP-1 receptor agonists that were originally formulated for Type 2 diabetes but have caused a revolution in the treatment of weight loss. As more research rolls in, they’re also looking like game-changers for treating conditions as far-ranging as heart disease, dementia, and substance use disorders. Do they represent a medical breakthrough on the level of penicillin, or are they too good to ...