I am not an experienced drug user but I work in a job where I have access to drugs and I figure not trying them is like working in an ice cream shop and not eating ice cream. Plus trying them myself gives me an insight into their clinical effects, so it's, like, for science.
Butorphanol
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 2 corroborating sources
- 4 ROAs with full dose ladders
- duration data present
- 19 combo interactions documented
- PubChem toxicity data
- dose data not in PW/TripSit (unverifiable)
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 2 corroborating sources
- 4 ROAs with full dose ladders
- duration data present
- 19 combo interactions documented
- PubChem toxicity data
- dose data not in PW/TripSit (unverifiable)
Aliases: Stadol, Dolorex, Torbutrol, Torbugesic
Summary
Butorphanol is marketed as Stadol (human formulation, now discontinued as brand name) and Torbugesic (veterinary). As a potent κ-opioid receptor agonist with partial agonist/antagonist activity at the μ-receptor, it produces analgesia with less respiratory depression than morphine but a high incidence of dysphoria, vertigo, and hallucinatory experiences. Recreational reports describe darkened or tunnel vision, mild warmth, dissociative or salvia-like headspace, and amnestic episodes at higher doses.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Insufflated | 0.5-1mg | 1-2mg | 2-3mg | 3.5mg+ |
| Intravenous | 0.5mg | 1mg | 1.5-2mg | 2.5mg+ |
| Intramuscular | 1mg | 2mg | 3mg | 4mg+ |
| Oral | 6mg | 8-12mg | 16mg | 20mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Peak | Offset | Total |
|---|---|---|---|---|
| Insufflated | - | 30-90 min | 1-2 hrs | 2-6 hrs |
| Intravenous | 1-3 min | 30-90 min | 1-2 hrs | 2-6 hrs |
| Intramuscular | 1-3 min | 30-90 min | 1-2 hrs | 2-6 hrs |
| Oral | 1-3 min | 30-90 min | 1-2 hrs | 2-6 hrs |
Opioid MME Calculator
⚠ Citation & Disclaimer:
Conversion factors sourced from the
NIH HEAL Initiative MME Calculator (Adams et al., PAIN 2025),
the CDC 2022 Clinical Practice Guideline for Prescribing Opioids for Pain,
and the MDCalc MME Calculator.
These are approximate equianalgesic ratios for educational reference only.
Individual responses vary significantly based on genetics, tolerance, cross-tolerance, and route of administration.
This is not medical advice. Do not use these conversions to adjust opioid dosing without professional medical guidance.
mg
1.42
mg
Butorphanol
≈
—
mg
Morphine
| Substance | Equivalent Dose | MME Factor |
|---|
⚠ Equianalgesic dose ratios are approximations and do not account for genetic factors, tolerance, incomplete cross-tolerance, or pharmacokinetic variations. Methadone conversion is especially variable at higher doses. Always consult a healthcare provider before making any changes to opioid therapy.
Effect Profile
12 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Opioid
6.3
Strong
6/10
Strong euphoria with moderate itching/nausea, mild pain relief, low sedation
Euphoria / Warmth
×3
10
physical euphoria
euphoria
cognitive euphoria
mood lift
Analgesia
×2
4
analgesia
Sedation / Relaxation
×1
3
sedation
Itching / Nausea
×1
7
nausea
constipation
dry mouth
Based on reports from:
Tolerance
Build-up
develops within days of regular use; analgesic tolerance faster than respiratory depression tolerance
Reset
7–14 days for partial reset; full reset may take weeks — tolerance loss greatly increases overdose risk
Tolerance Decay
Full tolerance
3d
Half tolerance
7d
Baseline
~35d
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Patterns are extrapolated from general opioid tolerance behavior and limited user reports. κ‑agonist dysphoria can reduce compulsive redosing for some, but physiological tolerance and dependence can still develop after several consecutive days. Data quality is low; individual variation is high.
Cross-Tolerances
Effects
Aggregated from 12 Erowid experience reports
Positive Effects 5
Sedation
41.7%
70%
Euphoria
33.3%
70%
Anxiety Suppression
33.3%
70%
Stimulation
25.0%
70%
Empathy
25.0%
70%
Adverse Effects 2
Nausea
41.7%
70%
Confusion
33.3%
70%
Combinations
Cross-Check Butorphanol with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.
Erowid 7 reports 6 neutral 1 cautionary visit
I will start this report by saying that I have no experience with painkillers/opiods for recreational purposes. I occasionally take 5mg of Vicodin for menstrual cramps but only to alleviate the pain. I did a bit of searching to try to figure out what dosage of Butorphanol I should take.
Recreational value: moderate. I rate it higher than codeine and opium but certainly lower than hydrocodone, oxycodone, heroin, or morphine. Note that I am a fan of the opiates and that I have never experienced the negative side effects of them that others complain about, such as nausea, dizziness, or mental unclarity.
My vet provided two 5mg tablets for my kittens after their surgery. I wondered if Torbutrol was anything like Ketamine and looked it up online . There was an experience submission that had given Torbutrol a scary review and I was willing to sacrifice my brain to help others decide if they would enjoy Torbutrol.
If you have not heard about Stadol it is a nose spray prescribed primarily for migraine headaches. I have taken many painkillers over the years but yet have I found one to help with my headaches like Stadol. I am also taken 50mg of Elavil and 1000mg of Depakote daily to help with my migraines.
I being very experienced with opiate painkillers have found this one to be my very favorite. I am readilly prescribed this for migraine headaches so I have very easy access. The high is very good, it is much like that of hydrocodone.
[Erowid Note: Intravenous (IV) injection of crushed pills/tablets can be very dangerous due to unknown substances, binders, and fillers present. Any substance injected directly into the blood stream should be very pure.
Bluelight 1 thread 1 neutral visit
Hey guys.. I have been a long time lurker of these forums, and I now that I have something to contribute of value, I would like to post. Please go easy on me as I explain what I have done. I will do my best to lay this out so you understand to the best of my ability.
Butorphanol's nerd page
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