Beta-meprodine
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)
- 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: Nu-1932
Summary
Very little modern clinical data exist. Early 1950s human studies suggested ฮฒ-meprodine is roughly equipotent to, or slightly less potent than, morphine by weight, while its stereoisomer ฮฑ-meprodine is several-fold stronger. Because ฮฒ-meprodine is Schedule I in the United States and internationally controlled, it is almost never encountered outside of research or illicit synthesis.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 5-10mg | 10-25mg | 25-40mg | 40mg+ |
| Intramuscular | 2-5mg | 5-10mg | 10-20mg | 20mg+ |
| Intravenous | 1-3mg | 3-7mg | 7-15mg | 15mg+ |
Onset, Duration & After-effects
| ROA | Onset | Peak | Offset | Total |
|---|---|---|---|---|
| Oral | 15-30 min | 30-60 min | 2-3 hrs | 3-5 hrs |
| Intramuscular | - | 30-60 min | 2-3 hrs | 3-5 hrs |
| Intravenous | - | 30-60 min | 2-3 hrs | 3-5 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)
Strong euphoria with moderate itching/nausea, mild pain relief, low sedation
Tolerance
Tolerance Decay
Acute tolerance: develops within a single session โ the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Opioid tolerance builds quickly with daily use and decays over weeks; partial cross-tolerance exists among ยต-agonists but is incomplete across different chemotypes. Data quality is limited; values are approximate and based on opioid class behavior rather than betameprodine-specific studies.
Cross-Tolerances
Effects
- Physical euphoria
- Pain relief
- Cough suppression
- Stimulation
- Respiratory depression
- Nausea
- Abnormal heartbeat
- Sedation
- Pupil constriction
- Itchiness
- Cognitive euphoria
- Anxiety suppression
- Reduced anxiety
- Euphoria
- Focus enhancement
- Motivation enhancement
- Memory enhancement
- Constipation
- Time distortion
- Thought acceleration
- Increased libido
- Appetite suppression
- Dehydration
- Light sensitivity
- Acuity Suppression
- Decreased Libido
- Appetite Suppression
- Orgasm Suppression
- Disinhibition
- Dulled perception
Combinations
Cross-Check Beta-meprodine with another substanceHelpful Links
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