Osmond is also known for a study in the late 1950s in which he attempted to cure alcoholics with LSD. He claimed to have achieved a fifty-percent success rate. Osmond noticed that some drinkers were only able to give up drinking after an episode of delirium tremens and tried to replicate this state in patients through giving them high doses of the drug. This came to be known as the psychedelic treatment model, contrasted to the psycholytic model that used low doses to help release repressed material from the mind which it was hoped would help the psychotherapeutic process. One of Osmond's patients during this time was Bill W., co-founder of Alcoholics Anonymous. However, what with the growing reputation for psychedelics' potential for enabling spiritual insight, rather than a delirium tremens type of experience, Bill W. hoped to recapture a mystical state of consciousness that he had experienced, years earlier, without a drug.