This malady [clinical lycanthropy], said Avicenna, troubleth men most in February, and is nowadays frequent in Bohemia and Hungary, according to Heurnius.
—Robert Burton, The Anatomy of Melancholy (1638/1651)
(Cf. Nabi Banazadeh, Ali Kheradmand, & Mansoureh Nasirian, “Rare Variant of Lycanthropy and Ecstasy,” Addict Health 1:1 [2009, Summer]:
Patient was a 28-year-old, unemployed, married male living in Kerman province, Iran. His education level was 5th grade and was brought to Beheshti Psychiatry Hospital in Kerman for his aggressiveness and restlessness. The patient complained of people who were observing him with an intention to harm.
The patient believed that his father had changed to a boar and frequently attacked him, his brother had changed to a horse and sometimes kicked him, and his mother changed to a donkey and continuously brayed. He said that his soul sometimes left his body and went to various places with these animals and found what others do in their houses. He also stated that there was an angel protecting him and he could hear some people talking to him about his daily activities. He believed that there was a chicken in his head capturing his body and pushing his brain with thoughts that were not his. He believed that his wife was wearing a ring and by moving it puts more stress on his brain and more unpleasant feeling and for this reason had asked his wife to move out.
It was found in his history that following taking many ecstasy pills for opium cessation in an unofficial opium cessation center, he developed some delusional symptoms. He had been under physician’s observation for several months and after relative recovery, he stopped his medications and the symptoms aggravated again. There was no history of mental problems before taking ecstasy. He had persecutory delusions, depersonalization, passivity, loss of ego boundary, out of body experience, synesthesia, lycanthropy, thought insertion delusions and auditory and visual hallucinations. His time, place and person orientation and memory were intact. His neurological exam showed no important point. He had normal brain CT scan and MRI. Based on his history and diagnostic criteria of DSM-IV-TR, the patient was admitted with schizophrenia diagnosis and received 15 mg olanzapine daily. His lycanthropic symptoms stopped after two weeks of treatment and other symptoms improved gradually after second month of admission.
My emphasis. Happy Wolf Moon!)