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Entity
Mirtazapine
PSX-0263
Open Beta
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Common namesAvanza, Axit, Mirtaz, Mirtazon, Remeron, Zispin
Substitutive name2-methyl-1,2,3,4,10,14b-hexahydropyrazino[2,1-a]pyrido[2,3-c][2]benzazepine
PsychoactiveAntidepressant
+1 more
SedativeChemicalPiperazinoazepine
Threshold
< 3.5 mg
Light
70 – 130 mg
Common
130 – 190 mg
Strong
190 – 250 mg
Heavy
250+ mg
Onset
15 – 30 min
Peak
90 – 180 min
Offset
2 – 6 hours
Total:14 – 24 hours
minlowmodhigh
Acute
Chronic
Physical
Psych.
Withdrawalnot assessed
Buildupalmost immediately after ingestion
Full reset7 days
caution25
Dosage varies by body weight, tolerance & metabolism · Not medical advice · Terms
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Effects (38)
Perception
Object activationVestibular distortionAuditory distortionAuditory hallucinationsAuditory enhancementDreaming enhancementMusic enhancementVisual acuity suppressionTracersVisual driftingColor alterationSymmetrical texture repetitionVisual haze / noiseExternal hallucinationsInternal hallucinationsObject transformationsBody
SedationSpontaneous body sensationsTactile hallucinationMotor control impairmentAppetite enhancementConstipationDizzinessDry mouthRespiratory stimulationMuscle relaxationRestlessnessNausea suppressionThinking
Thought decelerationAnalysis suppressionCognitive euphoriaConceptual thinkingAmnesiaImmersion enhancementTime
Time alterationDependence
not habit-forming
experience reports
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First-person accounts of subjective effects, timing, and outcomes — submitted for harm reduction.
Last updated Mar 17, 2026Report an issue