Complete dosage information for MDA — threshold, light, common, strong, and heavy dose ranges across 1 route of administration.
Full MDA profileImportant Safety Notice
Dosage information is for harm reduction purposes only. Individual sensitivity varies greatly. Always start with the lowest effective dose and work your way up slowly. Never eyeball doses — use a milligram scale.
## Recognizing an MDA Emergency MDA overdose is a medical emergency that presents similarly to MDMA toxicity but with some important differences: the longer duration means symptoms can persist and escalate over a more extended timeframe, the stronger stimulant component produces more intense cardiovascular strain, and the psychedelic effects can contribute to severe psychological distress that compounds the physical crisis. **Warning signs that demand immediate action:** - **Extreme body temperature** -- MDA-induced hyperthermia can progress to temperatures exceeding 40C (104F), triggering disseminated intravascular coagulation and multi-organ failure. If the person has stopped sweating despite being overheated, thermoregulatory failure has occurred - **Seizures** -- any seizure activity requires emergency medical care. MDA lowers seizure threshold, particularly at high doses - **Severe confusion, psychosis, or delirium** -- the psychedelic component of MDA means high-dose emergencies can include terrifying hallucinations, paranoid delusions, and complete disorientation that goes beyond typical stimulant toxicity - **Chest pain, rapid or irregular heartbeat** -- MDA's sympathomimetic effects produce significant cardiovascular strain. Hypertensive crisis, tachyarrhythmias, and cardiac events are documented - **Muscle rigidity or severe tremor** combined with high temperature -- classic indicators of serotonin syndrome - **Loss of consciousness or inability to respond coherently** -- indicates severe CNS toxicity - **Dark-colored urine** -- suggests rhabdomyolysis (muscle breakdown) from hyperthermia ## What to Do -- Step by Step **1. Call emergency services immediately.** Call 911 (US), 999 (UK), 112 (EU), or your local emergency number. Good Samaritan laws exist in most jurisdictions. A life is worth more than legal anxiety. **2. Cool the person down.** Move to the coolest available environment. Remove excess clothing. Apply cool water to the neck, armpits, and groin. Fan them. This is the single most impactful intervention you can perform before paramedics arrive, because hyperthermia dramatically accelerates all of MDA's toxic effects. **3. Manage psychological distress.** MDA emergencies often include a psychedelic component -- the person may be experiencing terrifying visual distortions or paranoid ideation alongside physical symptoms. Speak calmly and reassuringly. Reduce environmental stimulation. Do not physically restrain unless there is immediate danger. **4. Hydration -- carefully.** If conscious, alert, and not seizing, offer small sips of an electrolyte drink. If hyponatremia is suspected (excessive water intake, seizures, confusion), do NOT give more water. **5. Recovery position.** If unconscious but breathing, place on their side to prevent aspiration. **6. Inform paramedics.** Tell them MDA (or "sass"/"Sally") was taken, the approximate dose and timing, and any other substances involved. MDA's longer duration means the clinical course may differ from what emergency staff expect with MDMA. ## Medical Treatment Hospital treatment is supportive: aggressive cooling for hyperthermia, benzodiazepines for agitation and seizures, IV fluid management, cyproheptadine for serotonin syndrome, and continuous cardiac monitoring. There is no specific antidote. Hepatotoxicity (liver damage) is a documented complication of methylenedioxy compound overdose and may present with delayed-onset jaundice, abdominal pain, and transaminase elevation days after the acute event. Fatal MDA cases have typically involved hyperthermia as the proximate cause of death, often with polysubstance involvement, but fatalities from MDA as the sole substance have been documented.
A common oral dose of MDA is 60–100 mg.
The threshold dose for MDA via oral is approximately 20 mg.
MDA typically lasts 5–8 hours via oral.