Exenatide vs Dermorphin
Side-by-side comparison of key properties, dosing, and research.
GLP-1 / Weight Loss AgonistsCognitive Enhancement
ExenatideRecovery & Repair
Dermorphin- Summary
- Exenatide is a GLP-1 receptor agonist derived from the Gila monster lizard peptide exendin-4, with 53% homology to human GLP-1 and natural resistance to DPP-4 degradation. Available as twice-daily (Byetta) or once-weekly (Bydureon) formulation, it is also being studied for Parkinson's disease neuroprotection.
- Dermorphin is a naturally occurring heptapeptide opioid isolated from the skin of South American phyllomedusine frogs. It is one of the most potent endogenous mu-opioid receptor agonists known, approximately 30-40 times more potent than morphine by weight. Explored for pain management and fatigue modulation.
- Half-Life
- ~2.4 hours (Byetta/twice-daily); Bydureon BCISE: weekly via microsphere release
- Estimated 30-60 minutes (longer than endorphins due to D-Ala)
- Admin Route
- SubQ
- Subcutaneous (research), Intrathecal (research), Intranasal (research)
- Research
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- Typical Dose
- 5 mcg, titrate to 10 mcg
- Not established for human use; research doses vary widely
- Frequency
- Twice daily
- Not established
- Key Benefits
- Blood glucose control in type 2 diabetes
- Weight loss (average 2–3 kg in clinical trials)
- Once-weekly extended-release formulation available
- Reduces appetite and food intake
- Possible neuroprotective in Parkinson's disease (Phase II trials)
- Reduces systemic inflammation
- May protect pancreatic beta cells
- Cardiovascular neutral or potentially protective
- Potent analgesia superior to morphine on a per-weight basis
- May reduce perception of fatigue in high-intensity activity
- Longer-lasting than endogenous opioids due to D-amino acid substitution
- Research tool for mu-opioid receptor pharmacology
- Potential therapeutic application in refractory pain
- Side Effects
- Nausea (most common, especially initially)
- Vomiting
- Diarrhea
- Headache
- +4 more
- High addiction and dependence potential (mu-opioid agonism)
- Respiratory depression at high doses
- Nausea, vomiting, constipation
- Sedation and cognitive impairment
- +2 more
- Stacks With
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