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    ⚠ Opioids carry significant risk of respiratory depression, physical dependence, and fatal overdose. Never combine with other depressants.

    Propoxyphene Encyclopedic
    Encyclopedic
    Typical encyclopedia coverage. Cross-reference for important decisions.
    • 1 source
    • 1 ROA with full dose ladder
    • duration data present
    • toxicity data (PsychonautWiki, PubChem)

    Summary

    Is an analgesic in the opioid family. It is intended for mild pain and for its antitussive effects. Has been taken off the market in Europe and the US due to concerns of fatal overdoses and heart arrhythmias.

    Dose Information dose.wiki

    ROA Light Common Strong Heavy
    Oral 30-65mg 65-100mg 100-200mg 200mg+
    Light Common Strong Heavy
    Sources

    Oral

    Dose ladder — dose.wiki

    Onset, Duration & After-effects TripSit

    ROA Onset Peak After Effects Total
    Oral 20-30 min 1-3 hrs 2-6 hrs 1-3 hrs

    Tolerance

    Build-up develops within days of regular use; analgesic tolerance faster than respiratory depression tolerance
    Reset Falls quickly once you stop, at a rate you can't judge. After any break, treat your tolerance as gone.

    No tolerance chart. Our decay curves for opioids were estimates, and a curve can make tolerance look longer-lasting than it is, which is the dangerous direction.

    Opioid tolerance drops fast when you stop, and even a few days off can be enough, so a dose that used to be normal can now stop your breathing. Overdose deaths rise sharply after prison, detox or leaving treatment, and tolerance also falls during a hospital stay. After any break, start with a much smaller amount, try a test dose first, don't use alone, and keep naloxone within reach. Alcohol, benzodiazepines, gabapentinoids and other sedatives make an opioid overdose much more likely.

    Sources: FRANK: heroin · National Harm Reduction Coalition · WHO: opioid overdose · Merrall et al. 2010 · Binswanger et al. 2007 · Strang et al. 2003 · FDA 2019: gabapentinoids and breathing

    Effects Erowid

    Aggregated from 7 single-substance Erowid experience reports; 6 Erowid reports where another drug was taken too are left out

    Each bar shows the share of analyzed reports whose text mentions that effect — a mention is not always a first-hand experience (fear of an effect or something witnessed can count). Mentions saying the effect did not happen are left out; that check reads keywords, so it can miss some. The shaded band on a bar, and the small range after its number, is the 95% interval: where the share could plausibly be with other reports of the same kind. Fewer reports, wider band. Tap or hover any number for details. The second value is the Bluelight extractor's per-effect confidence; a dash means the row is Erowid-derived, which has no confidence measurement.

    Too few reports for bars: these effects come from 7 single-substance Erowid reports, and a bar is drawn only from 20 reports or more. With fewer, a percentage cannot tell a common effect from a rare one. Counts are shown instead. Why 20?

    Positive Effects 3

    5 of 7 –
    3 of 7 –
    3 of 7 –

    Adverse Effects 0

    Community Trip Reports

    Anecdotal first-person accounts from Reddit, Erowid, Bluelight, and Dose.wiki. Click a source to expand. Reports are harm-reduction context, not medical guidance. Tags summarise each author's own verdict — how reports are classified.

    Erowid 7 reports 5 positive 1 neutral 1 cautionary visit
    Glimpse of Perfection positive exp #64722

    Alright guys, I have a little but of a 'trip report' for you. It's not much, but here goes. At 4ish AM I ingested somewhere around 1.2 grams of Propoxyphene Napsylate. Well, I had a sore throat, very, very sore, and I decided that since I didn't have class that day, I could take all that.

    The Escherian Mind · Propoxyphene (Darvocet) · 6 tablets oral
    Nice But Takes Time Coming On positive exp #19647

    It's a Friday evening, normally I'd be toking on a spliff, but there is a bad batch of hash doing the rounds, so I decided to lay off it for a week. As a substitute I would probably take about 4-5 30mg codeine (neat, generic) pills, which were actually prescribed for me a couple a months ago for persistent dry cough.

    Ady Qad · 162.5 mg oral / 1625 mg oral
    In My Own Little World positive exp #48046

    I am curently experimenting with many drugs. I an a daily weed smoker, and have also tried oxycontin, XTC, Klonopin, valium, hydrocodone, cocaine, and several other drugs.

    James · Propoxyphene (Darvocet) · 650 mg insufflated / 100 mg insufflated
    Relaxed and Cozy neutral exp #11887

    I have been experimenting with various drugs for about 13 years. Most of the drugs I have used in the past were illicit, or 'street' drugs. I have had very little experience with pharmaceuticals. A few months ago, I was prescribed Darvon for a back injury.

    beth810 · 130 mg IV
    Unbelievable positive exp #46416

    Ok to start I am not very experianced with drugs. I am what you would probably consider very young to be taking the drugs I do. I smoke pot occasionally, have taken DXM, all sorts of Pharms (Hydrocodone, Codiene, Oxycodone, Adderall) And was looking through my parents medicine cabinet and saw something called Propoxyph...

    Stratman420 · 1 tablet oral
    Comfortably Numb positive exp #50935

    4:20 Ingested four darvocets, which have 100 mg of propxyphene and 325 mg of acetaminophen per pill. This is my first time experiencing with Darvocets, so I was going to start with 4 only, but figured what the hell and at 4:30 took my fifth. 5:00 no notable symptoms, really. Chatting on the internet.

    Nicole · 400 mg oral / 100 mg oral
    Ow! cautionary exp #115695

    I got my hands on some 65mg (Imprint 5110 V) capsules. When I pried one open I was glad to find the substance in a fine powder inside the capsule, perfect for insufflation. So I separated the powder into 3 small lines.

    pole · 48.75 mg oral

    Pill Identifiers

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    Helpful Links

    Import into PsychonautWiki Journal

    The PsychonautWiki Journal app includes Propoxyphene, but its built-in data can be thinner than ours. Importing this file adds a separate "Propoxyphene (Substance Search)" custom substance with our dose ranges and durations, so you can log against whichever you prefer. It leaves tolerance out on purpose, for the reason given under Tolerance above.

    ⬇ Download import file Import this file as custom substances and you get "Propoxyphene (Substance Search)" with every route's full dose ladder and timeline, no typing. Works on iOS and Android (v15+); the format is confirmed by the app's developer.

    Ranges are harm-reduction guidance, not a prescription.