9‑Me‑BC
Beta-carboline alkaloid. MAO-B inhibitor + neurotrophic, dopaminergic motivation nootropic (in vitro data).
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Pharmacology
Contents
WHAT IS 9-ME-BC?
Detailed overview
9-Methyl-β-carboline (9-Me-BC) is a beta-carboline alkaloid derivative, a small-molecule MAO-B (monoamine oxidase B) inhibitor + neurotrophic factor (BDNF, GDNF) expression-elevator. Dopaminergic neuron protection is documented in vitro and animal models; human data is sparse. Research-only in all regions, no clinical trial status. The β-carboline backbone occurs naturally in plants (Banisteriopsis caapi, Peganum harmala) as a MAO-A inhibitor, 9-methylation increases B-selectivity and blood-brain-barrier permeability.
Mechanism
MAO-B inhibitor + neurotrophic
Half-life
12-24 h (estimated, human data sparse)
Onset
60-120 min
Legal status
Global research only
Receptor profile
- MAO-B enzymeStrong
- BDNF / GDNF neurotrophic factorsStrong
- Dopamine synthesis (tyrosine hydroxylase, AADC)Moderate
- Hippocampal neurogenesisModerate
Safety
Side effects, stop signs, contraindications
Side effects · 6
- Limited human safety data: most effects derive from in vitro and animal models
- Photosensitivity, faster sunburn (beta-carboline scaffold interacts with UV light)
- Emotional blunting or flattening after prolonged use (anecdotal)
- Dopaminergic overstimulation: restlessness, insomnia, stimulant-like feel at higher doses
- Possible tyramine reaction (MAO-B selective, but not zero risk): headache, blood pressure rise
- Unknown long-term safety, chronic daily use uncharacterized
Contraindications · 6
- Do not combine with MAOIs, SSRIs, SNRIs: risk of serotonin syndrome and hypertensive crisis
- Avoid tyramine-rich foods (aged cheese, red wine, cured meat) during use
- Avoid direct UV/sun exposure (photosensitivity): SPF 50+ recommended
- Additive dopaminergic overstimulation with stimulants: do not combine with stimulants
- Avoid during pregnancy and breastfeeding (no safety data)
- Avoid in active psychiatric crisis or mania spectrum
Related Nootropics
Same therapeutic category
Studies
Related research and clinical findings
The exceptional properties of 9-methyl-beta-carboline: stimulation, protection and regeneration of dopaminergic neurons coupled with anti-inflammatory effects.
Polanski W, Enzensperger C, Reichmann H, Gille G
9-Methyl-beta-carboline has restorative effects in an animal model of Parkinson's disease.
Wernicke C, Hellmann J, Zieba B, Kuter K, Ossowska K
9-Methyl-β-carboline-induced cognitive enhancement, hippocampal dopamine, dendritic proliferation
Polanski W, Reichmann H et al.
9-Me-BC upregulates dopaminergic neuron differentiation in primary mesencephalic culture
Hamann J et al.
FAQ
FAQ
9-Me-BC is a beta-carboline-type alkaloid being studied because in lab experiments it raised dopamine activity and helped protect dopamine-producing nerve cells, which is why users try it for motivation, focus, or as a "dopamine detox" after heavy stimulant use. Human experience so far is only anecdotal, there's no serious clinical trial behind it.
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Structure & chemistry
The information here is strictly for educational and scientific purposes. It does not replace medical advice or clinical consultation, and it does not encourage illegal substance or pharmaceutical use. Data is sourced. When in doubt, consult your doctor.