Endomorphin-1 vs Insulin Lispro
Head-to-head comparison of Endomorphin-1 (Tyr-Pro-Trp-Phe-NH2) and Insulin Lispro (Insulin lispro (B28-Lys, B29-Pro human insulin analog)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Endomorphin-1 | Insulin Lispro |
|---|---|---|
| Category | Pain Management | Diabetes & Metabolic |
| Full Name | Tyr-Pro-Trp-Phe-NH2 | Insulin lispro (B28-Lys, B29-Pro human insulin analog) |
| Molecular Weight | 610.71 Da | 5808.0 Da |
| Half-Life | Minutes in plasma | About 1 hour |
| Amino Acids | 4 | 51 |
| Typical Dose | 0.1-10 ug per animal | 0.05-0.2 U/kg per meal |
| Route | Intrathecal / subcutaneous | Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 600 | 12000 |
| Research Status | Pre-clinical | Approved |
Endomorphin-1 Benefits
- ✓mu-opioid selectivity
- ✓potent antinociception
- ✓endogenous peptide scaffold
- ✓useful for receptor-discovery studies
Insulin Lispro Benefits
- ✓Rapid postprandial glucose control
- ✓Flexible premeal timing
- ✓Predictable onset of action
- ✓Useful in basal-bolus regimens
Endomorphin-1 Dosing
Intrathecal 0.1-10 ug per animal|Subcutaneous 0.1-5 ug per animal|In vitro 0.1-100 nM
Insulin Lispro Dosing
Inject SC 0-15 minutes before meals|Adjust dose to carbohydrate intake and premeal glucose|Often paired with a basal insulin
Endomorphin-1 Side Effects
- ⚠respiratory depression at high exposure
- ⚠sedation
- ⚠tolerance and dependence potential
Insulin Lispro Side Effects
- ⚠Hypoglycemia
- ⚠Weight gain
- ⚠Injection-site reactions
Research Overview
Endomorphin-1
Endomorphin-1 is a key research peptide in studies of endogenous mu-opioid signaling and spinal analgesia. Like other peptide analgesics, its main translational hurdles are enzymatic instability, limited oral bioavailability, and delivery across barriers.
Insulin Lispro
Clinical studies show faster onset and shorter duration than regular insulin, improving post-meal glucose control. It is a standard comparator in diabetes pharmacology and closed-loop insulin-delivery research.
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