DPDPE vs Insulin Aspart
Head-to-head comparison of DPDPE ([D-Pen2, D-Pen5]-enkephalin) and Insulin Aspart (Insulin aspart (B28-Asp human insulin analog)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | DPDPE | Insulin Aspart |
|---|---|---|
| Category | Pain Management | Diabetes & Metabolic |
| Full Name | [D-Pen2, D-Pen5]-enkephalin | Insulin aspart (B28-Asp human insulin analog) |
| Molecular Weight | 645.79 Da | 5825.8 Da |
| Half-Life | 15-60 minutes in plasma | About 1-3 hours |
| Amino Acids | 5 | 51 |
| Typical Dose | 0.01-1 ug per animal | 0.05-0.2 U/kg per meal |
| Route | Intrathecal / intracerebroventricular | Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 800 | 11000 |
| Research Status | Pre-clinical | Approved |
DPDPE Benefits
- ✓delta-opioid selectivity
- ✓improved conformational stability
- ✓analgesic receptor mapping
- ✓useful in chronic pain models
Insulin Aspart Benefits
- ✓Fast post-meal glucose lowering
- ✓Predictable onset
- ✓Flexible mealtime administration
- ✓Compatible with pump therapy
DPDPE Dosing
Intrathecal 0.01-1 ug per animal|Intracerebroventricular 0.01-0.5 ug per animal|In vitro 0.1-20 nM
Insulin Aspart Dosing
Inject SC immediately before meals|Titrate using glucose monitoring and carbohydrate intake|Can be used in insulin pumps or basal-bolus regimens
DPDPE Side Effects
- ⚠sedation
- ⚠nausea-like opioid effects
- ⚠tolerance with repeated dosing
Insulin Aspart Side Effects
- ⚠Hypoglycemia
- ⚠Injection-site reactions
- ⚠Weight gain
Research Overview
DPDPE
DPDPE is widely cited in opioid pharmacology because it helped establish the functional role of delta-opioid receptors in pain control. Its constrained structure is also used to explore how peptide cyclization changes potency, stability, and tissue selectivity.
Insulin Aspart
Research consistently shows faster onset and earlier peak action than regular human insulin. It is commonly studied for meal-time glycemic control and pump-based insulin delivery.
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