TASB, or thioasymbescaline, is a series of lesser-known psychedelic drugs similar in structure to asymbescaline and to mescaline. They were first synthesized by Alexander Shulgin and written up in his book PiHKAL (Phenethylamines i Have Known And Loved). Very little is known about their dangers or toxicity.
TASB compounds
3-TASB
Dosage: 160 mg or greater
Duration: 10–18 hours
Effects: Mild stimulative effects
4-TASB
Dosage: 60–100 mg
Duration: 10–15 hours
Effects: Negative effects
5-TASB
Dosage: 160 mg or greater
Duration: 8 hours
Effects: Warmth at extremities, diarrhea