MMDA-2 (2-methoxy-4,5-methylendioxyamphetamine) -see https://en.wikipedia.org/wiki/MMDA-2. This is Schedule I controlled substance! MMDA-2 (2-methoxy-4,5-methylenedioxyamphetamine) is a psychedelic drug of the amphetamine class. It is closely related to MMDA and MDA. Alexander Shulgin was likely the first to synthesize MMDA-2. In his book PiHKAL, the dose is listed as 25–50 mg, and the duration is listed as 8–12 hours. Shulgin reports that MMDA-2 produces effects such as enhanced awareness, empathy, and visual facilitation and distortion, as well as some side effects like gastrointestinal upset and appetite loss.He states that 30 mg is very similar to 80 mg of MDA, and also remarks that it would be impossible for anyone to have a bad experience on the drug at that dose.