Phenmetrazine
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 1 source
- partial dose data
- duration data present
- PubChem toxicity data
- 1 source
- partial dose data
- duration data present
- PubChem toxicity data
Aliases: Preludin
Summary
Stimulant drug that was previously used as an appetite suppresant, has been withdrawn from the market, due to concerns of abuse and addiction. Usually produces less nervousness, euphoria, and insomnia than drugs of the amphetamine family. Also as a study concluded, it is slightly more effective than dextroamphetamine as a weight loss agent.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | - | 25-50mg | - | - |
Onset, Duration & After-effects
| ROA | Onset | Peak | Total |
|---|---|---|---|
| Oral | 15-30 min | 4-8 hrs | 4-8 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 anxiety/jitters and euphoria with moderate stimulation
Tolerance
Tolerance Decay
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.
Effects
- Stimulation
- Physical euphoria
- Muscle relaxation
- Increased heart rate
- Nausea
- Vasoconstriction
- Respiratory depression
- Teeth grinding
- Insomnia
- Sedation
- Alertness enhancement
- Cognitive euphoria
- Euphoria
- Anxiety suppression
- Wakefulness
- Anxiety
- Compulsive redosing
- Dizziness
- Talkativeness
- Time distortion
- Increased music appreciation
- Increased libido
- Tactile enhancement
- Color enhancement
- Light sensitivity
- Disinhibition
- Appetite suppression
- Dehydration
- Double vision
- Dulled perception
Helpful Links
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