Side-by-side · Research reference
DermorphinvsSurvodutide
Side-by-side comparison across mechanism, dosage, evidence, side effects, administration, and stack synergies. Citations on every claim where available.
AAnimal-StrongHUMAN-REVIEWED20/47 cited
BPhase 3HUMAN-REVIEWED25/54 cited
Dermorphin
Opioid Peptide · μ-Receptor Agonist · Research Only
Research only · ICV / SC (animal models)
Survodutide
GLP-1/Glucagon Dual Agonist · Phase 3
SQ · Once Weekly
01Mechanism of Action
Parameter
Dermorphin
Survodutide
Primary target
μ-opioid receptors (central and peripheral)Negri 1992Steel 2014
GLP-1 receptor and glucagon receptor (GCGR)Yathindra 2026Zimmermann 2026
Pathway
μ-receptor activation → G-protein coupling → adenylyl cyclase inhibition → neuronal hyperpolarization
Central: CVOs → hypothalamic appetite regulation. Peripheral: GLP-1R → incretin effect; GCGR → hepatic lipid metabolism, energy expenditureZimmermann 2026Long 2026
Downstream effect
Potent analgesia, reduced nociceptive signaling, opioid-mediated CNS and peripheral effects
Decreased energy intake, increased energy expenditure, improved glucose homeostasis, hepatic fat reductionZimmermann 2026Yathindra 2026
Feedback intact?
N/A — exogenous opioid agonist
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Origin
Phyllomedusa sauvagei and P. bicolor frog skin — gene-encoded with natural D-amino acid incorporationAmiche 1998Mignogna 1992
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02Dosage Protocols
Parameter
Dermorphin
Survodutide
Legal status
Controlled substance in many jurisdictions · Research only
Not approved for human use.
—
Animal research (ICV)
Low nanomolar to picomolar range
Intracerebroventricular administration in rodent models.
—
Detection limit (doping)
5 pg/mL in equine plasma/urineSteel 2014
High-throughput LC-MS/MS screen developed for racing industry.
—
Duration of action
10–120 minutes (dose-dependent, intrathecal)
—
Evidence basis
Animal studies · In vitro assays
Phase 2 RCT (obesity) · Phase 3 ongoing
Human toxicity
Kambô ritual (P. bicolor skin) — violent emesis, vasodilation, fluid shifts, ADH dysregulationTran 2025
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Frequency
—
Once weekly
03Metabolic / Fat Loss Evidence
Parameter
Dermorphin
Survodutide
Primary fat target
—
Total body weight, visceral adipose tissue
Weight loss mechanism
—
Dual action: decreased energy intake + increased energy expenditureZimmermann 2026
Phase 2 efficacy
—
Significant weight loss demonstrated
Specific percentage not disclosed in abstracts.
Metabolic markers
—
Improvements in ALT, AST, LDL levels; significant ALT reduction (MD -22.10 vs placebo)Yathindra 2026Abulehia 2026Andonie 2026
Network meta-analysis
—
Favorable efficacy profile vs other glucagon receptor agonists
Comparative efficacy
—
Network meta-analysis shows competitive efficacy in GRA class
04Side Effects & Safety
Parameter
Dermorphin
Survodutide
Opioid effects
Respiratory depression, sedation, euphoria, tolerance, dependence risk
—
Kambô ritual toxicity
Violent emesis, vasodilation, profound fluid shifts, hyponatremia, ADH dysregulation, brain death (case report)Tran 2025
—
Receptor selectivity caveat
Two μ-receptor subtypes — differential behavioral effects (analgesia vs. catalepsy)Negri 1992
—
Proteolytic stability
Tyr³-Pro⁶ bond relatively unstable; endogenous enzymes may produce tetrapeptide fragmentsCucumel 1996
—
GI symptoms
—
Diarrhea, nausea, fatigue — class effect of GLP-1 agonists
Safety profile
—
Network meta-analysis: comparable safety to other GRAs
Serious adverse events
—
Monitored in Phase 2/3; no unique safety signals reported
Detailed SAE data pending Phase 3 completion.
Injection site reactions
—
Expected with subcutaneous administration
Glucagon-related effects
—
Potential for tachycardia, increased blood pressure — theoretical glucagon effect
Absolute Contraindications
Dermorphin
- ·Human use — not approved by any regulatory authority
- ·Controlled substance status — possession illegal in many jurisdictions
- ·Known opioid hypersensitivity or respiratory compromise
Survodutide
- ·Personal or family history of medullary thyroid carcinoma (class effect)
- ·Multiple endocrine neoplasia syndrome type 2
Relative Contraindications
Dermorphin
- ·Any context outside approved animal research protocols
- ·CNS depressant co-administration
Survodutide
- ·Severe GI disease (inflammatory bowel disease, gastroparesis)
- ·History of pancreatitis
- ·Cardiovascular disease (monitor closely for glucagon effects)
05Administration Protocol
Parameter
Dermorphin
Survodutide
1. Legal and ethical framework
Dermorphin is a controlled substance in many jurisdictions and is not approved for human use. Possession, synthesis, or distribution may be illegal. Use is restricted to licensed research settings under institutional review.
Specific reconstitution protocol not yet publicly disclosed. Follow manufacturer instructions upon approval.
2. Animal research protocols
In rodent models, intracerebroventricular (ICV) or intrathecal injection is used at nanomolar to picomolar concentrations. Subcutaneous administration also documented. All protocols require IACUC approval.
Subcutaneous — abdomen, thigh, or upper arm. Rotate sites weekly to minimize injection site reactions.
3. Analytical detection
High-throughput LC-MS/MS screens developed for anti-doping programs detect dermorphin and 17 related peptides in equine and human urine/plasma at limits as low as 5 pg/mL.Steel 2014
Once weekly, same day each week. Can be administered at any time of day, with or without meals.
4. Kambô ritual (traditional use)
Application of Phyllomedusa bicolor skin secretions to superficial burns. Not recommended — associated with severe toxicity including violent emesis, hyponatremia, and documented case of brain death.Tran 2025
Store refrigerated (2–8 °C) until use. Do not freeze. Protect from light. Specific reconstituted storage duration pending labeling.
5. Needle
—
Subcutaneous injection with appropriate gauge needle (typically 27–31G). Use sterile technique.