3,4-DMA (3,4-dimethoxy-amphetamine) -see https://en.wikipedia.org/wiki/3,4-DMA. This is Schedule I controlled substance! DMA, or dimethoxyamphetamine, is a series of lesser-known psychedelic drugs similar in structure to amphetamine and to trimethoxyamphetamine (TMA). They were first collectively characterized by Alexander Shulgin in his book PiHKAL (Phenethylamines I Have Known And Loved). Little is known about their dangers or toxicity.