4F-MDMB-BINACA is one of the most potent synthetic cannabinoids currently encountered (EC50 = 7.39 nM at CB1). A single match-head sized crystal can exceed a strong dose; always use a milligram-scale and dissolve for volumetric dosing if possible. Do NOT eyeball doses. Numerous severe poisonings and several fatalities have been linked to amounts below 2 mg, particularly when sprayed unevenly onto herbal material or mixed into counterfeit cannabis flower. Acute toxicity can involve severe tachycardia, hypertension or hypotension, seizures, loss of consciousness, acute psychosis, and respiratory depression.
Also known as: 4f-adb, Mdmb-4f-binaca, 4f-mdmb-butinaca, 4-Fluoro-MDMB-BUTINACA
Classification
Chemical: Cannabinoid
Chemical: Synthetic cannabinoid
Tag: Habit-Forming
Tag: Hallucinogen
Tag: Indazolecarboxamide
Tag: Research-Chemical
Effects
Profound Dry Mouth
Tachycardia
Nausea
Sweating
Chills
Somatic Heaviness
Rapid Intense Cannabislike Intoxication
Euphoria Or Dysphoria
Time Distortion
Shortterm Memory Suppression
Motor Control Loss
Anxiety
Closedeye Imagery
Visual Snow
Auditory Distortion
Closed Eye Visuals
Open Eye Visuals
Blurred Vision
Routes of Administration
Smoked
Dosage
Threshold: <0.1 mg (≈100 µg)
Light: 0.1 – 0.3 mg
Common: 0.3 – 0.8 mg
Strong: 0.8 – 1.5 mg
Heavy: ≥1.5 mg
Duration
Onset: 0-0.02 h
Peak: 0.08-0.33 h
Offset: 0.5-1 h
Oral
Dosage
Threshold: 0.05 mg
Light: 0.05 – 0.15 mg
Common: 0.15 – 0.4 mg
Strong: 0.4 – 0.8 mg
Heavy: ≥0.8 mg
Duration
Onset: 0-0.02 h
Peak: 0.08-0.33 h
Offset: 0.5-1 h
After Effects: 1-3 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.
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4F-MDMB-BINACA - DrugsPRO průvodce látkou
4F-MDMB-BINACA: 4F-MDMB-BINACA is one of the most potent synthetic cannabinoids currently encountered (EC50 = 7.39 nM at CB1). A single match-head sized crystal can exceed a strong dose; always use a milligram-scale and dissolve for volumetric dosing if possible. Do NOT eyeball doses. Numerous sever
