Library

4Cl-iBF

4Cl-iBF is classified as Opioid (μ-opioid receptor agonist). It belongs to the 4-anilidopiperidine (fentanyl analogue) chemical class.

Also known as: P-kloro-isobutyrylfentanyyli, Para-klorisoobutyrylfentanyl, P-Cl-iBF, 4-kloroisobutyrfentanyl, 4-kloro-isobutilfentanyl

Classification

  • Chemical: Anilidopiperidine
  • Chemical: Opioid
  • Psychoactive: Depressant
  • Tag: Fentanyl analogue
  • Tag: Synthetic opioid

Effects

  • Pain Relief
  • Sedation
  • Itching
  • Miosis
  • Nausea
  • Tightness
  • Euphoria
  • Anxiety Suppression
  • Sadness
  • Dizziness
  • Reduced Anxiety
  • Mood Lift
  • Dulled Perception
  • Double Vision
  • Dehydration
  • Appetite Suppression
  • Decreased Libido

Routes of Administration

Insufflated

Dosage

  • Heavy: >150 µg
  • Light: 20–40 µg
  • Common: 40–80 µg
  • Strong: 80–150 µg
  • Threshold: 10–20 µg

Duration

  • Onset: 0.03-0.08 h
  • Peak: 0.25-0.75 h
  • Offset: 1-2 h
  • After Effects: 2-6 h
  • Total Duration: 1.5-3 h

Sublingual

Dosage

  • Heavy: >200 µg
  • Light: 30–60 µg
  • Common: 60–120 µg
  • Strong: 120–200 µg
  • Threshold: 15–30 µg

Duration

  • Onset: 0.08-0.25 h
  • Peak: 0.25-0.75 h
  • Offset: 1-2 h
  • After Effects: 2-6 h
  • Total Duration: 2-4 h

Intravenous

Dosage

  • Heavy: >100 µg
  • Light: 10–25 µg
  • Common: 25–50 µg
  • Strong: 50–100 µg
  • Threshold: 5–10 µg

Duration

  • Onset: 0-0.02 h
  • Peak: 0.08-0.5 h
  • Offset: 0.75-1.5 h
  • After Effects: 1.5-6 h
  • Total Duration: 1-2 h

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.

No external data sources listed for this substance yet.

Links

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4Cl-iBF - DrugsPRO aineopas

4Cl-iBF: 4Cl-iBF is classified as Opioid (μ-opioid receptor agonist). It belongs to the 4-anilidopiperidine (fentanyl analogue) chemical class.

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