Fasoracetam
mGluR I/II/III modulator racetam, ADHD clinical research.
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Pharmacology
Contents
WHAT IS FASORACETAM?
Detailed overview
Fasoracetam (NS-105 / LAM-105 / NFC-1) is originally a Nippon Shinyaku (Japan) development that acts via up-regulation of metabotropic glutamate receptors (mGluR I/II/III). Aevi Medical (formerly Medgenics) advanced it to Phase 2/3 in ADHD (mGluR-mutation-positive adolescents) – initially positive, then mixed results in the 2019 expanded ADHD trial (PMID 31167583). Unique: upregulates GABA-B receptor expression (PMID 10494996) – anecdotally used to support Phenibut withdrawal. Cholinergic HACU enhancement (Coluracetam-like but weaker). cAMP→BDNF signaling cascade for memory formation. Banned in the UK under the Psychoactive Substances Act (since 2016).
Mechanism
mGluR I/II/III up-regulation
Half-life
~5-8 h
Legal status
Investigational, clinical trials
Receptor profile
- GABA-B receptorsStrong
- mGluR (Groups I, II, III)Moderate
- Choline uptakeModerate
Safety
Side effects, stop signs, contraindications
Side effects · 5
- Headache, often from increased cholinergic activity (mitigated with a choline source such as CDP-choline)
- Abdominal pain, diarrhea and nausea, mainly at doses above the nootropic range
- Fatigue, lethargy
- Irritability
- Dizziness, mild lightheadedness, especially when starting use
Contraindications · 5
- Pregnancy and breastfeeding: no safety data, should be avoided
- Combined with phenibut or other GABA-B-active agents it potentiates their effect (GABA-B upregulation), caution required
- Prolonged high-dose use may burden liver and kidney function, caution with long-term use
- Clinical-trial-stage compound, not approved anywhere, long-term safety unknown
- Not recommended under 18; those on medication or with serious medical conditions should seek medical advice first
Related Nootropics
Same therapeutic category
FAQ
FAQ
Fasoracetam is a compound from the racetam family, originally developed in Japan, that acts on certain brain signaling systems (glutamate receptors). Its most concrete, documented use case is ADHD: it went through clinical trials (Phase 2/3) for that purpose. Based on the source, it's best understood as a research/clinical-stage compound rather than a widely established, everyday supplement.
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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.