Independent medication information Not a pharmacy · Not a substitute for medical advice
DrugRX.org
Entactogens / Entactogen compound

MDMA (ecstasy)

Identity, uses and research, side effects, dosage context, pricing and online access.

Entactogen compoundEntactogens
Reference nameMDMA
Entry typeEntactogen compound
CategoryEntactogens
Chemical name3,4-Methylenedioxymethamphetamine
Common namesEcstasy; Molly
Related compoundMDA

DrugRX editorial reference · Sources consulted · Not independently medically reviewed

MDMA (ecstasy) molecular structure

MDMA (ecstasy) 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 guidelines

About MDMA (ecstasy)

MDMA is 3,4-methylenedioxymethamphetamine, also called ecstasy or Molly. A street name does not confirm a product’s chemical contents.

Also searched as: MDMA · Molly · Ecstasy · 3,4-Methylenedioxymethamphetamine

PRICE, COST & AVAILABILITY

Buy MDMA: pricing & legal access

MDMA online: availability & product information

MDMA is federally listed in Schedule I. Clinical research status is not retail authorization. DrugRX does not list sellers, verify online offers or quote illicit-market prices.

Pricing status: No live price feed or verified quote. DrugRX does not sell or dispense products.

Sources: DEA — Controlled substances alphabetical list (October 2026)

DETAILED REFERENCE

MDMA information

Identity and effects

MDMA has stimulant and perception-altering effects. It is distinct from MDA, although both appear in entactogen discussions.

Sources: DEA — MDMA

Health risks

Jaw clenching, sweating and increased heart rate may occur. Dangerous overheating and other severe poisoning effects can be life-threatening. Products may contain other drugs.

Sources: DEA — MDMA

Research and interaction context

Clinical research uses defined protocols and materials; it does not authenticate a street product. This page provides no recreational dose or combination instructions.

Sources: FDA — Psychedelic drugs: clinical investigations

Stimulant and entactogenic effects

MDMA can change energy, mood, emotional experience and perception. These descriptions do not establish that a particular product contains only MDMA or that an expected subjective effect will occur.

Sources: DEA — MDMA

Molly, ecstasy and product identity

A name, logo or tablet appearance cannot verify ingredients. Products sold as MDMA may contain additional or different drugs. A clinical exposure history should therefore distinguish a reported product name from confirmed laboratory identification.

Sources: DEA — MDMA

Temperature and acute toxicity

Serious overheating can damage organs and is not just an uncomfortable expected effect. Severe confusion, collapse or seizures require emergency assessment. Other substances and circumstances can complicate the presentation.

Sources: DEA — MDMA

MDMA versus MDA

MDA lacks the additional N-methyl group described in MDMA’s name. It is a separate compound with its own research literature. The term entactogen groups some reported effects; it does not establish identical pharmacokinetics or interchangeable amounts.

Sources: DEA — MDMA · Controlled study of MDA in healthy volunteers (2019)

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.

  1. DEA — MDMA
  2. FDA — Psychedelic drugs: clinical investigations
  3. Controlled study of MDA in healthy volunteers (2019)
  4. 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.