Cognitive & Neurological

Nociceptin

Nociceptin/Orphanin FQ (N/OFQ)

An endogenous ligand for the NOP receptor (opioid-like receptor). Has complex effects on pain, anxiety, stress, and reward that are distinct from classical opioids.

PainAnxietyStressOpioid-likeNeuropeptide

Quick Reference

Category
Cognitive & Neurological
Research Claims
3 reviewed
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Mechanism of Action

Nociceptin binds to NOP receptors, modulating pain (pro- or anti-nociceptive depending on context), reducing anxiety, and modulating stress responses. It also affects learning and memory.

Health Claims & Evidence

Modulates pain in a context-dependent manner

ModerateNOP receptor-mediated pain modulation documented

Reduces anxiety and stress responses

ModerateNOP receptor activation has anxiolytic effects in animal models

Modulates reward and addiction pathways

ModerateNOP receptor modulation of dopamine system documented

Short-Term Effects

Context-dependent pain modulation, anxiolysis.

Long-Term Effects

Research use primarily.

Side Effects

Limited data for exogenous administration.

Contraindications

Research use only.

This profile is provided for educational research only. It is not a treatment recommendation or dosing guide. Human evidence, safety information and regulatory status vary by substance. Verify primary sources and consult a qualified healthcare professional for medical decisions.

Research Papers

Nociceptin and the NOP receptor

Meunier et al. · Nature · 1995

Educational research only. This profile is not a treatment recommendation or dosing guide. Human evidence, safety information and regulatory status vary by substance. Consult a qualified healthcare professional for medical decisions.

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