[citation needed] In his book TiHKAL (Tryptamines I Have Known and Loved), the dosage is listed as 10-20 mg.[2] 4-HO-MET produces psilocin-like distortion of color, sound, and form.

[2] Users report similar effects to psilocin, including mydriasis, closed and open eye visuals, euphoria, time dilation and general change in thought processes.

[6] 4-HO-MET is a class A drug in the UK, as a result of the tryptamine catch-all clause.

[citation needed] 4-HO-MET is not scheduled at the federal level in the United States, but it is possible that it could be considered an analogue of psilocin, in which case purchase, sale, or possession could be prosecuted under the Federal Analogue Act.

[7] It is a schedule I substance in some states, such as South Dakota[8] and West Virginia.