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Pe-22-28 Versus Classical Anxiolytics: Mechanism Comparison
| Compound Class | Primary Mechanism | Anxiolytic Efficacy | Sedation Risk | Tolerance Development | Cognitive Impairment | Professional Assessment ||—|—|—|—|—|—|| Pe-22-28 (CCK-4 derivative) | Allosteric GABA-A modulation (γ2 subunit selective) | Moderate (40
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- | Compound Class | Primary Mechanism | Anxiolytic Efficacy | Sedation Risk | Tolerance Development | Cognitive Impairment | Professional Assessment ||—|—|—|—|—|—|| Pe-22-28 (CCK-4 derivative) | Allosteric GABA-A modulation (γ2 subunit selective) | Moderate (40–48% increase in EPM open-arm time at 1.0 mg/kg) | Minimal (no locomotor suppression in preclinical models) | None observed in 14-day chronic dosing studies | Minimal (no deficits in Morris water maze or passive avoidance tasks) | Unique anxiolytic profile without typical GABAergic side effects. Compelling for stress-response research where sedation confounds results || Benzodiazepines (diazepam, alprazolam) | Direct GABA-A agonism (α1-α5 subunits) | High (60–70% reduction in anxiety indices) | High (α1 subunit activation produces sedation in 80%+ of subjects) | Rapid (tolerance within 5–7 days of daily use) | High (α5 subunit involvement impairs hippocampal-dependent memory consolidation) | Gold standard for acute anxiolysis but