page_title: Thiomescaline
section_title: 4-TM
hierarchical_section_title: Thiomescaline / 4-TM
caption_attribution_description: English: Chemical structure of 4-TM, drawn in ChemDraw by User:Mark PEA.
context_page_description: Thiomescaline is a pair of lesser-known psychedelic drugs with the molecular formula C₁₁H₁₇NO₂S. 3-TM and 4-TM are analogs of mescaline in which an oxygen atom has been replaced with a sulfur atom. They were first synthesized by Alexander Shulgin and described in his book PiHKAL. Very little data exists on the pharmacological properties, metabolism, and toxicity of thiomescaline.
context_section_description: Dosage: 20–40 mg
  Duration: 10–15 hours
  Effects: LSD-like imagery and effects
caption: 4-TM, or 4-methylthio-3,5-dimethoxy-phenethylamine
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