Side effects and watch-outs
- Euphoria (dose-dependent)
- Mild sedation
- Nausea
- ⚠️ Opioid receptor activity — potential for dependence with frequent use
- Very short half-life — rapid action and offset
Peptide / Neuroprotective
Leu-Enkephalin
Endogenous opioid pentapeptide. Pain modulation, mood enhancement. Extremely short half-life. Research for chronic pain, depression, and immune modulation.
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