MMDA is a member of the amphetamine drug class with stimulant and psychedelic properties. It also acts as an entheogen and an entactogen. MMDA bears resemblance to the psychopharmacologically active essential oils elemicin and myristicin found in nutmeg. The effects of MMDA includes feelings of euphoria and warmth, as well as realistic closed-eye visuals. MMDA is a recreational drug. It has no current medical uses and is a Schedule I controlled substance in the USA at present. The mechanism that produces the psychedelic activity of MMDA has not been definitively established. There are, as of the present time, no reported studies on the human pharmacokinetics or metabolism of MMDA.

QUALITATIVE COMMENTS:

• (with 100 mg) I felt completely relaxed at one hour. Almost as if I was floating. There were no obvious effects on taste, and the relaxation and composed feeling is much like a small dose, maybe 20 mikes, of LSD. There was some dilation, and in the evening I was a little restless and slightly tired. I slept well, and awoke refreshed and happy.
• (with 100 mg) It seemed to take 45 minutes to work and then it came on very suddenly, as if my eyeballs were being pulled out and my whole head expanding. Soon a cold feeling set in with shivering - this was not unpleasant. My state in about two hours seemed to be one of empathy and passivity, compassion of an impersonal sort. The music sounded artificial and canned and tinny, in contrast to the voices, which sounded rich and full and finely articulated and melodious.
• (with 150 mg) We are on the beach at the river mouth drying seaweed, on split redwood. There is a slight nausea, slight cramps, and then my visual field starts to light up. Still vertigo but only with my eyes open, and heaviness and time stretches out; numbness in the chest as when an opiate is taken. There are geometric patterns, but the excess light on my closed eyelids interferes with this. A dance of the glittering diamond studded sea waves, increasing motion and beauty. More landscapes appear inside. This is a good introductory drug to the drugs of this class, to become familiar with the drug state in as gentle a fashion as possible. This substance seems to have a much gentler action than others of this class; perhaps more like cannabis or psilocybin. There is very little paranoia. I note hallucinations of two types: those which are strictly retinal and more minute and small and influenced by light and focused on the light ahead on the retina or lids; and the other, those deep in the visual tract and occiput which are larger and more global and dream-like and, when solid, are quite dramatic and unforgettable as in meditation.
• (with 210 mg) MMDA tastes awful. The bitter alkaloid taste is followed by a distinctively chemical laboratory flavor as if from old rubber tubing. Nothing seems to happen for about 45 minutes when rather suddenly an anvil seems to lower itself over your head; you feel disoriented, and tend to withdraw from social contact a little. The drug gives less feeling of being ill than mescaline. The effect definitely reaches a climax with a pleasant afterglow following. Apparently there are no profound motor coordination problems. MMDA yields that 'Sunday afternoon' feeling of desiring to lie down and enjoy life; a luxurious feeling of 'layback.' No enhancement of colors in visual scene (except for some greenish tinges in faces) but upon closing eyes hallucinations appear to be quite real in 3-D, like watching a movie. First these dreams appear in black and white, but later colors start appearing. Chartreuse and magenta first appear, then blue and finally red. First I had visions of large numbers on gaming tables, then people. MMDA appears to bring dreams to the conscious level; is a link between the subconscious and the conscious.
• (with 225 mg) I had a strange awareness of my hands in about 20 minutes - not a feeling in them as just that I was attracted to them somehow. Then I began to get fearful, an acute experience of aloneness. I lay face down (a depressed position for me). Next I was talking to the kids at school (an image) or to other teachers. This was very vivid. The scenes at school were more vivid that the real scenes around me here. Those people were much more real. I am actually very sleepy right now during the experiment. Of any experience I have had, this was most like a series of dreams easily remembered. When it was over, I felt as if I had had a long period of sleeping - I had gone to bed and had a series of dream-like states very vivid and colorful and real.

#132 MMDA:
https://erowid.org/library/books_online/pihkal/pihkal132.shtml

MMDA from Nutmeg:
https://www.reddit.com/r/AskDrugNerds/comments/akinre/mmda_from_nutmeg/
MMDA From Nutmeg Ethanolic Extract (Myristicin):
https://www.reddit.com/r/drugchemistry/comments/a9xutc/mmda_from_nutmeg_ethanolic_extract_myristicin/
MMDA? Why is this not more popular/known?:
https://www.reddit.com/r/TheeHive/comments/d9r50k/mmda/

Erowid Experience Vault:
https://erowid.org/experiences/subs/exp_MMDA.shtml

MMDA: The Legal Psychedelic:
https://www.youtube.com/watch?v=g-7Rfk32qro

MMDA-2 (hydrochloride) Safety Data Sheet (PDF 5 pages):
https://www.caymanchem.com/msdss/17659m.pdf

MMDA is a psychedelic and entactogen drug of the amphetamine class. It is an analogue of lophophine, MDA, and MDMA. Worldwide as of 2005, MMDA has not been approved for any human applications. MMDA has been shown to act as a non-neurotoxic serotonin releasing agent with no effects on dopamine release and probably norepinephrine release as well, and as a 5-HT2A receptor agonist. The latter property is responsible for its psychedelic effects, whereas the former mediates its mood-lifting and empathogenic effects.