MDA (3,4-methylenedioxyamphetamine) molecular structure. This diagram does not show a finished medicine or identify a pill.
PubChem / National Library of Medicine · Structure images reusable under PubChem citation guidelinesAbout MDA (3,4-methylenedioxyamphetamine)
MDA is 3,4-methylenedioxyamphetamine, an entactogen and psychedelic amphetamine. It is a different compound from MDMA.
Also searched as: MDA · Sally · 3,4-Methylenedioxyamphetamine
Buy MDA: pricing & legal access
MDA online: availability & product information
MDA is federally listed in Schedule I. An entactogen label or similarity to MDMA does not authorize retail access. DrugRX has no verified pharmacy price and no seller directory.
Pricing status: No live price feed or verified quote. DrugRX does not sell or dispense products.
Sources: DEA — Controlled substances alphabetical list (October 2026)
MDA information
Human research
A small controlled study examined subjective and physiological effects in healthy volunteers. Such research describes a study sample rather than establishing a general treatment indication.
Sources: Controlled study of MDA in healthy volunteers (2019)
Effects and uncertainty
The study investigated altered experience and physiological responses. It cannot provide reliable rates of rare harms or establish the safety of unidentified street products.
Sources: Controlled study of MDA in healthy volunteers (2019)
Dosage context
No self-treatment or recreational dose is recommended here. Study materials, participant screening and monitoring are part of the findings’ context.
Sources: Controlled study of MDA in healthy volunteers (2019)
Chemical identity
MDA and MDMA have related but different structures. Abbreviations should be spelled out when identifying a study or a product because a single added letter can identify a different molecule.
Sources: Controlled study of MDA in healthy volunteers (2019)
What the human experiment investigated
The cited controlled experiment examined MDA in healthy volunteers, including subjective effects. Such a study can characterize a research preparation but does not validate a product offered under an informal street name.
Sources: Controlled study of MDA in healthy volunteers (2019)
Limits of the evidence
A small experimental sample cannot establish the frequency of uncommon complications or outcomes in people with varied medical conditions. Human pharmacology findings are also different from evidence of effectiveness for a diagnosed disorder.
Sources: Controlled study of MDA in healthy volunteers (2019)
Comparing entactogen claims
A claim that MDA resembles MDMA needs to specify whether it concerns chemistry, subjective experience or another outcome. Similarity in one area cannot establish equivalent strength, duration, safety or legal access.
Sources: Controlled study of MDA in healthy volunteers (2019) · DEA — MDMA
Sources and editorial notes
Prepared by DrugRX using the references linked below. Sources were consulted on 2026-10-31. This page has not been independently reviewed by a clinician. Research findings, medication approval and legal permission are separate questions.
- Controlled study of MDA in healthy volunteers (2019)
- DEA — MDMA
- DEA — Controlled substances alphabetical list (October 2026)
Legal information is a dated U.S. reference. Product rules and local laws may change. Where the evidence does not establish a dose, interaction profile or price, the page states that limitation.