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Peptide Therapy GuideClear peptide education

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Best PE-22-28 Dosage for Anxiety: Research Protocol Comparison

Rodent elevated plus maze (2020 Neuropeptides study) 1–3mg/kg subcutaneous Subcutaneous injection 30–60 minutes post-dose 2–4 hours 1mg/kg produced statistically significant anxiety reduction without ceiling effect at 3mg/kg. Optimal therapeutic dose likely at

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This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.

  • Rodent elevated plus maze (2020 Neuropeptides study)
  • 1–3mg/kg subcutaneous
  • Subcutaneous injection
  • 30–60 minutes post-dose
  • 2–4 hours
  • 1mg/kg produced statistically significant anxiety reduction without ceiling effect at 3mg/kg. Optimal therapeutic dose likely at lower end of range
  • Human-equivalent allometric scaling
  • 5.6–28mg total dose (0.08–0.4mg/kg for 70kg adult)
  • Theoretical subcutaneous
  • Unknown. No human data
  • Provides theoretical starting range but doesn't account for species differences in receptor density or bioavailability. Phase 1 trials required
  • Intranasal pilot study (2021)
  • 0.5–2mg absolute dose
  • Intranasal spray
  • 15–30 minutes post-dose
  • 1.5–3 hours
  • 60% bioavailability of subcutaneous route with faster onset but shorter duration. Potentially useful for acute situational anxiety rather than sustained daily management
  • Twice-daily rodent protocol
  • 1mg/kg BID (morning and evening)
  • Sustained across 24-hour period
  • Maintained with repeated dosing
  • Twice-daily dosing maintained receptor upregulation without tolerance development over 14-day study period. Suggests chronic use feasibility