The drug was originally developed to treat menstrual and headache pain, but Sandoz found that the side effects, which included hallucinations, were too severe to make it marketable. Sandoz thought psychiatrists might use it to better understand and communicate with their schizophrenic patients. Grof volunteered to try it. An assistant strapped him to a chair and injected him with a hundred micrograms. “I saw light as I had never seen it before, I could not believe it existed,” Grof later recalled.
