Category: painkiller

Human saliva contains a painkiller called Opiorphin that is about six times more powerful than morphine. Saliva from humans has yielded a natural painkiller up to six times more powerful than morphine, researchers say. 

Human saliva contains a painkiller called Opiorphin that is about six times more powerful than morphine. Saliva from humans has yielded a natural painkiller up to six times more powerful than morphine, researchers say.