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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