Beta-meprodine
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
Onset, Duration & After-effects
| ROA | Onset | Peak | Offset |
|---|---|---|---|
| Oral | 15-30 min | 30-60 min | 2-3 hrs |
| Intramuscular | 1-5 min | 30-60 min | 2-3 hrs |
| Intravenous | 1-5 min | 30-60 min | 2-3 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
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