Giannini A J, Castellani S
J Toxicol Clin Toxicol. 1982 Jul;19(5):505-8. doi: 10.3109/15563658208992506.
A case is presented of a 31-year-old male who showed neurological and psychic symptoms following ingestion of phenylcyclohexylpyrrolidine (PHP), which was verified by identification of PHP in the urine. Treatment with physostigmine (IM) produced a rapid and sustained reversal of these symptoms.