DADLE vs Calcitonin
Head-to-head comparison of DADLE ([D-Ala2, D-Leu5]-enkephalin) and Calcitonin (Salmon Calcitonin) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | DADLE | Calcitonin |
|---|---|---|
| Category | Pain Management | Pain Management |
| Full Name | [D-Ala2, D-Leu5]-enkephalin | Salmon Calcitonin |
| Molecular Weight | 569.67 Da | 3431.9 Da |
| Half-Life | 5-20 minutes in plasma | about 10-15 minutes |
| Amino Acids | 5 | 32 |
| Typical Dose | 0.01-2 ug per animal | 100 IU/day SC or 200 IU/day intranasal |
| Route | Intrathecal / intracerebroventricular | Intranasal/Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 450 | 350 |
| Research Status | Pre-clinical | Approved |
DADLE Benefits
- ✓delta-opioid agonism
- ✓enhanced peptide stability
- ✓spinal analgesia models
- ✓research on tolerance mechanisms
Calcitonin Benefits
- ✓bone pain relief
- ✓short-term analgesic effect
- ✓may reduce opioid requirement
- ✓useful in osteoporotic fracture pain
DADLE Dosing
Intrathecal 0.01-2 ug per animal|Intracerebroventricular 0.01-1 ug per animal|In vitro 0.1-50 nM
Calcitonin Dosing
100 IU subcutaneous daily|200 IU intranasal daily|short-term use in acute pain settings
DADLE Side Effects
- ⚠sedation
- ⚠motor suppression at higher doses
- ⚠opioid tolerance with repeated exposure
Calcitonin Side Effects
- ⚠nausea
- ⚠flushing
- ⚠rhinitis
Research Overview
DADLE
DADLE has been studied for analgesic, neuroprotective, and receptor-selective opioid effects in animal and tissue models. It remains important as a mechanistic probe because it is more stable than endogenous enkephalins but still peptide-like in its delivery constraints.
Calcitonin
Calcitonin has been evaluated in randomized trials and reviews for pain associated with vertebral compression fractures and other bone-related conditions. The signal is strongest for short-term analgesia rather than long-term chronic pain control.
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