Psychoactive toa is a name used for toads from which psychoactive substances from the family of bufotoxins can be derived. The skin and venom of Bufo alvarius (Colorado River toad or Sonoran Desert toad) contain 5-MeO-DMT and bufotenin. Other species contain only bufotenin. 5-MeO-DMT and bufotenin both belong to the family of hallucinogenic tryptamines. Due to these substances the skin or venom of the toads may produce psychoactive effects when ingested.