MDA

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MDA
MDA-2D-skeletal.svg
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Chemical Nomenclature
Common names MDA
Substitutive name Tenamfetamine, 3,4-methylenedioxy-amphetamine, Methylenedioxyamphetamine
Systematic name (R) 1-(benzo[1,3]dioxol-5-yl)propan-2-amine
Class Membership
Psychoactive class Entactogen, Stimulant, Psychedelic
Chemical class Phenethylamine
Routes of Administration



Oral
Dosage
WARNING: Always start with lower doses due to differences between individual body weight, tolerance, metabolism, and personal sensitivity. See responsible use section.
DISCLAIMER: PW's dosage information is gathered from users and resources for educational purposes only. It is not a recommendation and should be verified with other sources for accuracy.
Threshold 30 - 50 mg
Light 75 - 100 mg
Common 100 - 150 mg
Strong 130 - 170 mg
Heavy 170 mg +
Duration
Total 4 - 8 hours
Onset 20 - 90 minutes
Come up 5 - 20 minutes
Peak 2 - 4 hours
Offset 2 - 4 hours
After effects 3 - 24 hours









Summary sheet: MDA

MDA, also known as methylenedioxyamphetamine, 3,4-methylenedioxy-amphetamine, tenamfetamine, or colloquially as "Sally", "Sass", or "Sass-a-frass", is a psychoactive drug of the substituted phenethylamine and amphetamine classes of drugs that is consumed primarily for its entactogenic, psychedelic, and stimulant effects. Pharmacologically, MDA acts as a serotonin-norepinephrine-dopamine releasing agent and reuptake inhibitor. Possession of MDA is illegal in most countries. Some limited exceptions exist for scientific and medical research. It is worth noting that the recreational use of MDA predates its more widely used analog MDMA (ecstasy).

Chemistry

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Pharmacology

MDA acts as a releasing agent and reuptake inhibitor of the neurotransmitters known as serotonin, dopamine and norepinephrine.[1][2] It also functions as a a 5-HT2A,[3] 5-HT2B,[4] and 5-HT2C receptors,[5] and shows affinity for the TAAR1, α2A-, α2B-, α2C-adrenergic receptors and 5-HT1A and 5-HT7 receptors.[6]

The effect on serotonin may explain the similar euphoric and empathogenic effects of the two compounds MDMA and MDA. However, MDA has a higher efficacy in stimulating the 5-HT2A receptor than MDMA; thus MDA tends to cause more psychedelic-like effects, such as visual geometry and hallucinations. Whilst MDMA can also produce psychedelic-like visual effects, these are generally less pronounced than those of MDA, or require a heavier dose to become apparent. It's worth noting that the role of these interactions and how they result in the psychedelic experience continues to remain elusive.

Subjective effects

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While MDA is generally similar to MDMA, users report that MDA has more stimulant and psychedelic qualities and less intense entactogenic effects than MDMA. MDA is also considered less predictable than MDMA, with effects varying greatly from person to person.

The effects listed below are based upon the subjective effects index and personal experiences of PsychonautWiki contributors. The listed effects will rarely (if ever) occur all at once, but heavier dosages will increase the chances and are more likely to induce a full range of effects.

Physical effects

Cognitive effects

Visual effects

Enhancements

Distortions

Geometry

Hallucinatory states

Auditory effects

Toxicity and harm potential

Anecdotal evidence from people within the psychonaut community who have tried MDA suggests that there are no negative health effects attributed to simply trying the drug by itself at low to moderate doses and using it very sparingly (but nothing can be completely guaranteed). Independent research should always be done to ensure that a combination of two or more substances is safe before consumption.

Harold Blauer[7] died in January 1953 after being intravenously injected with 450 mg of MDA.

It is strongly recommended that one use harm reduction practices when using this drug.

Tolerance and addiction potential

MDA is not habit-forming and the desire to use it can actually decrease with use. It is most often self-regulating.

Tolerance to the psychedelic effects of MDA are built almost immediately after ingestion. However, tolerance to the stimulant and entactogenic effects are built up after repeated and heavy usage in a manner that varies between individuals. After that, it takes about 3 days for the tolerance to be reduced to half and 7 days to be back at baseline (in the absence of further consumption). MDA presents cross-tolerance with all psychedelics and most stimulants, meaning that after the consumption of MDA all psychedelics and some stimulants will have a reduced effect.

Dangerous interactions

Serotonin syndrome risk

Combinations in the list below may increase the amount of neurotransmitters such as serotonin and dopamine to dangerous or even fatal levels.

Legal issues

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  • United Kingdom - It is illegal to produce, supply, or import this drug under the Psychoactive Substance Act, which came into effect on May 26th, 2016.[9]

History

MDA was first synthesized by G. Mannish and W. Jacobson in 1910.[10] It was first ingested in July 1930 by Gordon Alles who later licensed the drug to Smith, Kline & French. MDA was first used in animal tests in 1939, and human trials began in 1941 in the exploration of possible therapies for Parkinson's disease. From 1949 to 1957, more than 500 human subjects were given MDA in an investigation of its potential use as an antidepressant and/or anorectic by Smith, Kline & French. The United States Army also experimented with the drug, code named EA-1298, while working to develop a truth drug or incapacitating agent. Harold Blauer[11] died in January 1953 after being intravenously injected with 450 mg of the drug.

MDA was patented as a cough suppressant by H. D. Brown in 1958, as an ataractic by Smith, Kline & French in 1960, and as an anorectic under the trade name "Amphedoxamine" in 1961. MDA began to appear on the recreational drug scene around 1963 to 1964. It was then inexpensive and readily available as a research chemical from several scientific supply houses. Several researchers, including Claudio Naranjo and Richard Yensen, have explored MDA in the field of psychotherapy.[12][13] In 2010, Matthew Baggott and colleagues studied the ability of MDA to invoke mystical experiences and alter vision in healthy volunteers.[14]

See also

External links

References

  1. Trace amine-associated receptor 1 is a stereoselective binding site for compounds in the amphetamine class (PubMed.gov / NCBI) | https://www.ncbi.nlm.nih.gov/pubmed/22037049
  2. Endogenous hallucinogens as ligands of the trace amine receptors: a possible role in sensory perception (PubMed.gov / NCBI) | https://www.ncbi.nlm.nih.gov/pubmed/18805646
  3. Serotonin-dopamine Interaction: Experimental Evidence and Therapeutic Relevance | http://books.google.com/books?id=mPkKtA15KM8C&pg=PA294
  4. Serotonergic drugs and valvular heart disease (PubMed.gov / NCBI) | https://www.ncbi.nlm.nih.gov/pubmed/19505264
  5. Effect of the R(-) and S(+) isomers of MDA and MDMA on phosphatidyl inositol turnover in cultured cells expressing 5-HT2A or 5-HT2C receptors (PubMed.gov / NCBI) | https://www.ncbi.nlm.nih.gov/pubmed/7824160
  6. Psychedelics and the human receptorome (PubMed.gov / NCBI) | https://www.ncbi.nlm.nih.gov/pubmed/20126400
  7. The History Channel documented details of his death here http://www.youtube.com/watch?v=ySw-0uY4CUA See minute 2:38 onward.
  8. Monoamine oxidase inhibitors, opioid analgesics and serotonin toxicity | http://bja.oxfordjournals.org/content/95/4/434
  9. Psychoactive Substances Act 2016 (Legislation.gov.uk) | http://www.legislation.gov.uk/ukpga/2016/2/contents/enacted
  10. Über Oxyphenyl-alkylamine und Dioxyphenyl-alkylamine | http://onlinelibrary.wiley.com/doi/10.1002/cber.19100430126/abstract;jsessionid=CF00D19D5BF8D9E4343735C6B27E57AE.f03t03
  11. The History Channel documented details of his death here http://www.youtube.com/watch?v=ySw-0uY4CUA See minute 2:38 onward.
  12. Evaluation of 3,4-Methylenedioxyamphetamine (MDA) as an Adjunct to Psychotherapy | http://www.karger.com/Article/Abstract/137100
  13. MDA-assisted psychotherapy with neurotic outpatients: a pilot study (PubMed.gov / NCBI) | https://www.ncbi.nlm.nih.gov/pubmed/972325
  14. Investigating the Mechanisms of Hallucinogen-Induced Visions Using 3,4-Methylenedioxyamphetamine (MDA): A Randomized Controlled Trial in Humans | http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0014074