2-MMC Facts
Stimulant;
Dose and durationby route · individual sensitivity varies
Oral(mg)
Threshold< 15 mgLight20 – 50 mgCommon50 – 100 mgStrong100 – 135 mgHeavy135+ mg
Starts in 15 – 30 minLasts 2 – 4 hoursAfter-effects 2 – 6 hours
Also recorded: Insufflated. See full page: psychedex.org/substances/2-mmc
Body and dependence
- Acute toxicity
- Moderate
- Chronic toxicity
- Moderate
- Physical dependence
- Negligible
- Psychological dependence
- High
- Withdrawal
- Moderate
- Compulsive redosing
- High
Tolerance
- Builds
- Moderate
- Fully resets after
- 10 days
- Carries over to
- amphetamine;
methamphetamine; MDMA; 3-MMC; mephedrone; cocaine
Effectslikely at a common dose
- Perception
- none likely · 8 possible
- Body
- Appetite suppression;
Dry mouth; Heart rate perception changes; Insomnia; Pupil dilation; Stimulation; Wakefulness; +19 possible, including Dehydration sensation, Muscle tension, Vasoconstriction - Thinking
- Cognitive euphoria;
Thought acceleration; +22 possible, including Compulsive redosing urge, Cognitive dysphoria, Decision impairment - Feeling
- Euphoria;
+9 possible, including Anhedonia, Anxiety, Depression - Self
- none likely · 10 possible, including Craving, Compulsive repetitive behavior, Ego inflation
- Awareness
- none likely · 1 possible
Who shouldn't take it
Absolute
Cardiovascular disease; Pregnancy and lactation; Concurrent MAOI therapy
Relative
Seizure disorders; Active psychosis, bipolar disorder, severe anxiety; Hepatic impairment; Vigorous activity in hot environments
Combinations60 recorded
Lethal (1)
MAOIs
Dangerous (25)
Alpha-2 adrenergic receptor antagonist; Amphetamines; Ephedrine, Pseudoephedrine; GHB, Baclofen; GHB, GBL; Local anesthetics; MDMA, MDA; NDRIs (Wellbutrin); NRIs; Opioids; SNRIs; SSRIs; Stimulants; 5-HTP, Tryptophan; Antipsychotics; Buspirone; Caffeine; Dopamine agonists; DXM; Ibogaine; Ketamine, DXM, PCP; Lithium; NSAIDs; Psychedelics; and 1 more, see full page
Caution (25)
See full page: psychedex.org/substances/2-mmc
Not graded (9)
Not listed never means safe.
Seek help immediately if
- Chest pain; racing, pounding, or irregular heartbeat
- Very high body temperature; heavy sweating; hot, flushed skin
- Severe agitation, paranoia, panic, or confusion
- Severe headache; muscle rigidity or twitching
- Seizures
- Signs of stroke — face drooping, one-sided weakness, slurred speech
- Difficulty breathing; collapse or unconsciousness
What to do
- Call emergency services for chest pain, overheating, seizure, or unresponsiveness
- Move them to a cool, quiet place and reduce stimulation
- Cool the body — remove excess clothing, apply cool damp cloths, fan them
- Keep them calm; reassure — panic worsens the cardiovascular strain
- If seizing, protect from injury (don't restrain); recovery position afterward
- Monitor breathing and be ready to give rescue breaths / CPR
Most stimulant overdoses settle with cooling, a calm environment, and time. The medical danger is hyperthermia, cardiac events (arrhythmia, heart attack, stroke), and seizures — get help immediately if any appear.
988 Suicide & Crisis LifelineFireside Project: 62-FIRESIDE
psychedex.org/substances/2-mmc · Version r1 · Not medical adviceValues as of