Persistent speech problems, memory loss, severe anxiety and depression, and social withdrawal have also been seen following prolonged use. The structure of MDA is similar to both mescaline and the amphetamines. A brown or white powder, MDA is sold loose, in capsules, or as an amber liquid. The common dose is 100 mg which is usually swallowed. The effects of MDA occur in 30 to 60 minutes and last about 8 hours.
Users report a sense of well-being along with heightened tactile sensations and emotions.
Higher doses produce effects similar to those of LSD, including hallucinations or sensory distortions. Physical effects resemble those of amphetamines and include dilated pupils, high blood pressure, and dry nose and throat. Overdoses can cause death. It is usually taken orally in doses of 75 to 100 mg. Like MDA, it is produced in labs specifically for the illicit drug market and there is no medical use.