4-HO-MiPT was presumably first synthesized by Alexander Shulgin. Its synthesis is described in his book TiHKAL along with reports by people who had ingested the compound. Shulgin's trials and other anecdotal information suggest that 4-HO-MiPT is a synthetic psychedelic similar in activity to psilocin. It is relatively uncommon and has only a short history of human use.
Very little is known about the toxicity of 4-HO-MiPT. Its chemical structure and pharmacological activity are very similar to psilocin, a compound which isn't associated with compulsive use or physical dependence. However, because very little research has been done on 4-HO-MiPT, it cannot be definitively concluded that its pharmacological actions in the human body do not differ from those of psilocin. To date, there have been no reported deaths from 4-HO-MiPT.