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3-FMC

3-FMC is a synthetic stimulant of the substituted cathinone and phenethylamine classes. It is a structural isomer of flephedrone (4-fluoromethcathinone) and is pharmacologically related to mephedrone. 3-FMC has been distributed online as a designer drug, producing effects characteristic of its class. It may function as a monoamine releaser, reuptake inhibitor, or both. The substance is considered habit-forming and may carry significant addiction potential.

Also known as: 3-fluoromethcathinone

Classification

  • Chemical: Cathinone
  • Chemical: Phenethylamine
  • Psychoactive: Entactogen
  • Psychoactive: Stimulant
  • Tag: Habit-Forming
  • Tag: Research-Chemical

Effects

  • Stimulation
  • Increased Perspiration
  • Bruxism
  • Itchiness
  • Increased Energyalertness
  • Decreased Need For Sleep
  • Euphoria
  • Irritability
  • Sociability Enhancement
  • Increased Sociability
  • Mood Lift
  • Excessive Talking
  • Increased Libido
  • Appetite Suppression
  • Auditory Hallucination
  • External Hallucination
  • Increased Sexuality
  • Visual And Auditory Hallucinations

Routes of Administration

Oral

Dosage

  • Heavy: 150+ mg
  • Light: 25 – 50 mg
  • Common: 50 – 100 mg
  • Strong: 100 – 150 mg
  • Threshold: 10–20 mg

Duration

  • Onset: 0.33-0.75 h
  • Peak: 1-1.5 h
  • Offset: 2-4 h
  • After Effects: 4-10 h
  • Total Duration: 2-6 h

Insufflated

Dosage

  • Heavy: 100+ mg
  • Light: 10–25 mg
  • Common: 25–60 mg
  • Strong: 60–100 mg
  • Threshold: 5–10 mg

Duration

  • Onset: 0.03-0.17 h
  • Peak: 0.75-1.25 h
  • Offset: 2-4 h
  • After Effects: 3-8 h
  • Total Duration: 2-5 h

Rectal

Dosage

  • Heavy: 120+ mg
  • Light: 20–40 mg
  • Common: 40–80 mg
  • Strong: 80–120 mg
  • Threshold: 10–20 mg

Duration

No data available for this section yet.

Harm Reduction

Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.

Sources

Substance data is aggregated from the following public harm-reduction and reference sources.

Links

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3-FMC: 3-FMC is a synthetic stimulant of the substituted cathinone and phenethylamine classes. It is a structural isomer of flephedrone (4-fluoromethcathinone) and is pharmacologically related to mephedrone. 3-FMC has been distributed online as a designer drug, producing effects characteristic of it

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