Home
    Disclaimer
    โ˜  Nitazene-class opioids are extremely potent, often exceeding fentanyl in strength. Even trace amounts can be fatal. Naloxone should always be on hand.
    ๐Ÿงช This is a research chemical with limited data on its long-term health effects, toxicity profile, and safe dosage ranges.
    โš  Opioids carry significant risk of respiratory depression, physical dependence, and fatal overdose. Never combine with other depressants.

    Pronitazene Encyclopedic
    Encyclopedic
    Typical encyclopedia coverage. Cross-reference for important decisions.
    • 2 corroborating sources
    • 3 ROAs with full dose ladders
    • duration data present
    • 19 combo interactions documented
    • classified Research-chemical
    • dose data not in PW/TripSit (unverifiable)

    Aliases: Protonitazene, Propoxynitazene

    Summary TheDrug.Wiki

    Active in double-digit microgram doses; steep dose-response curve. Volumetric dosing essential due to extreme potency. Multiple naloxone doses may be required for reversal.

    Dose Information TheDrug.Wiki

    ROA Light Common Strong Heavy
    Oral 50-100ยตg 100-250ยตg 250-500ยตg 500ยตg+
    Insufflated 10-50ยตg 50-150ยตg 150-300ยตg 300ยตg+
    Vaporized 5-25ยตg 25-100ยตg 100-200ยตg 200ยตg+
    Light Common Strong Heavy

    Onset, Duration & After-effects TheDrug.Wiki

    ROA Onset Peak Offset After Effects Total
    Oral 10-20 min 20-60 min 2-4 hrs 1-2 hrs 4-6 hrs
    Insufflated 1-5 min 20-60 min 2-4 hrs 1-2 hrs 4-6 hrs
    Vaporized - 20-60 min 2-4 hrs 1-2 hrs 4-6 hrs

    Effect Profile

    Scores (1–10) curated from multiple sources:

    • Effect keyword matching from PsychonautWiki catalog
    • Weighted by importance: core (×3), major (×2), minor (×1)

    Full methodology

    Opioid 6.1
    Strong 6/10

    Strong euphoria and itching/nausea with mild sedation and pain relief

    Euphoria / Warmth ×3
    10
    physical euphoria cognitive euphoria euphoria warmth
    Analgesia ×2
    4
    pain relief
    Sedation / Relaxation ×1
    5
    sedation muscle relaxation
    Itching / Nausea ×1
    10
    itching nausea constipation

    Tolerance

    Build-up develops within days of regular use; analgesic tolerance faster than respiratory depression tolerance
    Reset 7โ€“14 days for partial reset; full reset may take weeks โ€” tolerance loss greatly increases overdose risk

    Tolerance Decay

    Full tolerance 5d Half tolerance 7d Baseline ~35d

    Pattern inferred from user reports on rapid tolerance build with short-acting potent opioids; exact kinetics unknown. Treat as anecdotal and err on conservative spacing between uses.

    Cross-Tolerances

    Effects TheDrug.Wiki

    Positive
    • Physical euphoria
    • Pain relief
    • Muscle relaxation
    Negative
    • Itching
    • Respiratory depression
    • Nausea
    Neutral
    • Sedation
    • Nodding
    • Pupil constriction
    • Itchiness
    Positive
    • Cognitive euphoria
    • Anxiety suppression
    • Reduced anxiety
    • Wakefulness
    • Motivation enhancement
    • Euphoria
    Negative
    • Constipation
    • Motivation suppression
    • Compulsive redosing
    • Anxiety
    Positive
    • Warmth
    • Increased music appreciation
    • Increased libido
    Negative
    • Appetite suppression
    • Light sensitivity
    • Disinhibition
    • Dehydration
    Neutral
    • Warm flush
    • Dulled perception
    • Internal hallucination

    Combinations TripSit

    Cross-Check Pronitazene with another substance

    Community Trip Reports

    Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.

    Bluelight 1 thread 1 neutral visit
    Protonitazene Reporr neutral

    This substance is very nice. Get a hot warm fuzzy feeling that lasts about 2 hours before it slowly fades off over the next 2-3 hours. Confidence is boosted, mood is elevated. Pain is taken away.

    scraped 2026-03-14

    Helpful Links