MDMA (3,4-Methylenedioxymethamphetamine)

MDMA-assisted therapy produced significantly greater reductions in PTSD symptoms and functional impairment than placebo, with no serious adverse events.

RCT Sample size: 90

The study found that stimulants release norepinephrine more potently than dopamine or serotonin, and that norepinephrine release potency correlates with oral doses producing subjective effects, suggesting a role for norepinephrine in MDMA's effects.

experimental study

MDMA-assisted psychotherapy reduced PTSD symptoms more than placebo therapy in people with chronic, treatment-resistant PTSD.

RCT pilot

The study provided direct evidence of a decrease in a structural component of brain serotonin neurons in human MDMA users.

quantitative PET study

The study found that MDMA is a potent agonist at rat trace amine receptor 1, suggesting an additional mechanism for its effects beyond transporter interactions.

pharmacological characterization

Argues that MDMA and MBDB are 'entactogens,' a new therapeutic class distinct from classic hallucinogens and stimulants, based on differences in mechanism and subjective effects.

theoretical

MDA and MDMA cause selective degeneration of serotonin axon terminals in the rat forebrain, with MDA producing greater loss than MDMA.

experimental study

MDMA stimulates serotonin efflux from both plasma membrane and secretory vesicle transporters through distinct mechanisms involving direct transporter interaction and pH gradient dissipation.

laboratory study

MDMA causes a biphasic depletion of cortical serotonin, with a reversible acute phase and a later neurotoxic phase specific to the (+)-stereoisomer, which can be blocked by fluoxetine.

experimental study

MDMA and MDA cause long-lasting reductions in serotonin metabolite levels and serotonin uptake site density in rat brain, indicating neurotoxic effects on serotonergic neurons.

animal experiment

MDMA acts as a potent releaser and reuptake inhibitor of serotonin, dopamine, and norepinephrine, producing entactogen effects and acute toxicity including serotonin syndrome.

review

The active dose of MDMA-assisted psychotherapy led to significant and lasting reductions in PTSD symptoms compared to a lower dose.

RCT

MDMA produced predominantly positive subjective effects in a clinical setting, enhancing emotional openness and introspection with minimal adverse reactions.

observational study

MDMA exhibited higher potency at serotonin transporter than at dopamine transporter, unlike amphetamine and methamphetamine which were more potent at norepinephrine and dopamine transporters.

in vitro laboratory study

Ecstasy is primarily used infrequently for fun at social gatherings, with positive mood and intimacy as main effects, but tolerance and increased negative effects discourage regular use.

cross-sectional survey Sample size: 100

Argues that ecstatic phenomena in post-unification Italy were framed as disorderly and subject to normative surveillance, and that literary authors used ecstasy to explore the self's inner tensions.

historical analysis

Argues that Kazantzakis constructs Zorba as the embodiment of Nietzsche's ideal of life-affirmation, and that ecstasy in the novel is an existential practice enabling spiritual autonomy and creative freedom.

theoretical

MDMA-enhanced cognitive-behavioral conjoint therapy was feasible and acceptable, and was associated with clinically meaningful reductions in PTSD symptoms and improvements in relationship satisfaction.

pilot trial

Argues that MDMA is best understood as a domain-specific modulator of social reward, threat perception, positive-valence affective sharing, and interpersonal appraisal, rather than a global empathy enhancer.

review

Challenging experiences across DMT, psilocybin, MDMA, and ketamine converged substantially but showed substance-specific features, with MDMA associated with euphoria and absence of other mystical-type phenomena.

thesis with thematic analysis Sample size: 146

Most oncology providers felt uncomfortable counseling patients on psychedelic-assisted therapy, and willingness to recommend was linked to familiarity with emerging data and legal status.

cross-sectional survey Sample size: 385

The review indicates that classic psychedelics, MDMA, and ketamine do not cause lasting cognitive impairment, and some studies suggest potential improvements in cognitive flexibility and well-being.

systematic review

Nearly half of surveyed psychologists reported prior MDMA use, and those with experience showed differences in attitudes toward MDMA's therapeutic and recreational uses compared to those without.

survey Sample size: 74

MDMA combined with exposure to a traumatic cue produced rapid and sustained recovery in trauma-susceptible mice, with significant treatment- and time-dependent effects on avoidance behavior.

preclinical study

MDMA sessions produced significantly higher MEQ30 scores than placebo, and the Positive Mood subscale significantly mediated PTSD symptom reduction, while total and other subscale effects were non-significant.

secondary analysis of two phase 2 randomized trials Sample size: 53