Psilomethoxin, also known as 5-methoxypsilocin or as 4-hydroxy-5-methoxy-N,N-dimethyltryptamine (4-HO-5-MeO-DMT), is a compound of the tryptamine family which has been speculated may have psychedelic effects. It is related to psilocin (4-HO-DMT) and 5-MeO-DMT and in terms of chemical structure can be thought of as a combination of the structural features of the two compounds. The drug has been encountered as a novel designer drug online.