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Phenmetrazine

This article is a stubmissing:
Subjective Effects
Pharmacology
Interactions
Tolerance
History & Culture
Phenmetrazine molecule structurePhenmetrazine molecule structure
Chemical Class

Dosage & Duration

Dosage

Doses are population estimates that vary widely between individuals.

Moderate25-50 mg

Duration

Onset15-30 minutes
After Effects1-12 hours
Total4-8 hours

Subjective Effects

Subjective Effects not written up yet

Pharmacology

Pharmacology not written up yet

Interactions

Interactions not written up yet

An unlisted combination is an unknown one, not a safe one. Check a dedicated combination chart before mixing.

Check TripSit

Tolerance

Tolerance not written up yet

Harm Potential

Addiction & Dependence

Psychological

High

Phenmetrazine is considered by some to have greater addiction potential than amphetamines, and available references describe widespread misuse, abuse, and market withdrawal due to misuse and addiction concerns.

Toxicity

cardiovascular

Overdose may cause tachycardia, arrhythmias, hypertension, and cardiovascular collapse.

central nervous system

Overdose includes acute central nervous system stimulation.

History & Culture

History & Culture not written up yet

Legality

International

Phenmetrazine has approved and illicit status, and was withdrawn from the market after prior anorectic use.

Article Status

  • Josie Kins avatar
    Step 1 · Automated synthesis

    An autonomous workflow built by Josie Kins compiled this article's foundation from information published across the web.

  • Step 2 · First-pass reviewPending

    Not yet reviewed — this article is pending editorial review by Lyrea.

  • Step 3 · Citation reviewPending

    No one has reviewed this article's citations yet. That second pass checks each claim against the source it cites.

Recent changes7 human edits · latest

Times are UTCNewest first

24 January 2026

  1. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  2. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  3. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  4. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  5. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  6. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  7. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

All changes to this article · Site-wide recent changes

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