"Other examples of human-sourced pharmaceuticals surely causing more distress than they relieved include strips of cadaver skin tied around the calves to prevent cramping, "old liquified placenta" to "quieten a patient whose hair stands up without cause" (I'm quoting Li Shih-chen on this one and the next), "clear liquid feces" for worms ("the smell will induce insects to crawl out of any of the body orifices and relieve irritation"), fresh blood injected into the face for eczema"