In his book PiHKAL (Phenethylamines i Have Known And Loved), the dosage range is listed as 160–240 mg, and the duration as 3–5 hours.
The dosage in Alexander Shulgin's book PiHKAL (Phenethylamines i Have Known And Loved) ranges from 160 to 240 mg, with a duration of around 3 to 5 hours.