Skip to main content

DOPR Facts

Psychedelic; Substituted amphetamine; Serotonin 2A receptor agonist

Dose and durationby route · individual sensitivity varies

Oral(mg)
Threshold< 2 mgLight2 – 3 mgCommon3 – 4 mgStrong4 – 5 mgHeavy5+ mg

Starts in 60 – 120 minLasts 20 – 30 hoursAfter-effects 12 – 24 hours

Body and dependence

Acute toxicity
Moderate
Chronic toxicity
Low
Physical dependence
None
Psychological dependence
Negligible
Withdrawal
None recorded
Compulsive redosing
Negligible

Tolerance

Builds
Rapid
Fully resets after
7 days
Carries over to
LSD; psilocybin; mescaline; DOM; DOC; DOB; DOI; DOET; 2C-P; 2C-B

Effectslikely at a common dose

Perception
Visual morphing; Brightness alteration; Color alteration; Color enhancement; Depth perception distortion; Environmental patterning; Geometry; Music enhancement; Symmetrical texture repetition; Tracers; Visual breathing; Visual drifting; +22 possible, including Visual haze / noise, Spatial disorientation, Vestibular distortion
Body
Appetite suppression; Body high; Heart rate perception changes; Insomnia; Muscle tension; Physical fatigue; Pupil dilation; Spontaneous body sensations; Stimulation; Wakefulness; +22 possible, including Dehydration sensation, Excessive sweating, Nausea
Thinking
Aesthetic enhancement; +29 possible, including Thought loops, Suggestibility enhancement, Cognitive dysphoria
Feeling
Emotional enhancement; +11 possible, including Emotional lability, Anxiety, Anhedonia
Self
none likely · 11 possible, including Derealization, Depersonalization, Ego inflation
Time
Time alteration; +4 possible, including Temporal disorientation

Who shouldn't take it

Absolute
Psychotic spectrum disorders; Pregnancy; MAOI use; Lithium use
Relative
Cardiovascular disease; Seizure disorders; Bipolar disorder

Combinations61 recorded

Lethal (1)
MAOIs
Dangerous (18)
MDMA, MDA; NRIs; Buspirone; Dopamine agonists; GHB, Baclofen; GHB, GBL; Ibogaine; Ketamine, DXM, PCP; Lithium; Local anesthetics; MDMA, Amphetamines; NDRIs (Wellbutrin); Psychedelics; Salvia, Ibogaine; SNRIs; SSRIs; Stimulants; Synthetic cannabinoids
Caution (37)
See full page: psychedex.org/substances/dopr
Not graded (5)
Not listed never means safe.

Seek help immediately if

Most difficulty is psychological (intense fear, panic, confusion) and passes with calm support — the signs below mean seek emergency help:

  • Very high body temperature; hot, dry skin
  • Seizures
  • Chest pain; fast or irregular heartbeat
  • Severe muscle rigidity, tremor, or twitching (possible serotonin syndrome)
  • Cold, pale, or blue fingers/toes — severe vasoconstriction (notably NBOMe / DOx)
  • Persistent vomiting; unconsciousness; uncontrollable agitation or risk of self-harm

What to do

  1. Stay calm and reassure — remind them they took a drug and the effect will pass
  2. Move to a calm, quiet, safe space with low light; reduce noise and sensory input
  3. Keep them from harm — they may act on fear or confusion; stay with them, don't leave them alone
  4. Talk them down gently; don't grab or restrain unless they're in danger
  5. For the medical signs above (overheating, seizure, chest pain, vasoconstriction, unresponsive) call emergency services
  6. If overheating, cool the body; be ready to give rescue breaths / CPR

The experience is time-limited and usually resolves with calm reassurance in a safe setting — psychological first aid, not medication. Serious physical harm is uncommon for classic psychedelics (LSD, psilocybin) but real for some potent phenethylamines (NBOMe, DOx), where hyperthermia, seizures, and vasoconstriction warrant emergency care.

988 Suicide & Crisis LifelineFireside Project: 62-FIRESIDE

psychedex.org/substances/dopr · Version r1 · Not medical adviceValues as of
On the printout