Asymbescaline, or 3,4-di ethoxy-5- methoxy phenethylamine, is a lesser-known psychedelic drug. It is a homologue of Mescaline. Asymbescaline was first synthesized by Alexander Shulgin. In his book PiHKAL (Phenethylamines i Have Known And Loved), the dosage range is listed as 200–280 mg, and the duration listed as 10–15 hours. Asymbescaline produces few to no effects. Very little data exists about the pharmacological properties, metabolism, and toxicity of Asymbescaline.