Bremelanotide vs Cholecystokinin-8
Head-to-head comparison of Bremelanotide (Bremelanotide (PT-141), cyclic melanocortin receptor agonist) and Cholecystokinin-8 (Cholecystokinin (sulfated C-terminal octapeptide, CCK-8)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Bremelanotide | Cholecystokinin-8 |
|---|---|---|
| Category | Sexual Health | Endocrine Peptides |
| Full Name | Bremelanotide (PT-141), cyclic melanocortin receptor agonist | Cholecystokinin (sulfated C-terminal octapeptide, CCK-8) |
| Molecular Weight | 1025.2 Da | 1143.2 Da |
| Half-Life | about 2.7 h | 1-2 min |
| Amino Acids | 7 | DY(SO3H)MGWMDF-NH2 |
| Typical Dose | 1.75 mg | physiologic low-picomolar-nanomolar range|research-dependent |
| Route | Subcutaneous | endogenous secretion|research IV/SC |
| Purity | ≥98% | ≥98% |
| Studies Count | 200 | 97 |
| Research Status | Clinical | Endogenous |
Bremelanotide Benefits
- ✓increases sexual desire
- ✓supports arousal
- ✓may improve erectile response
- ✓on-demand use
Cholecystokinin-8 Benefits
- ✓gallbladder contraction
- ✓pancreatic enzyme release
- ✓satiety signaling
Bremelanotide Dosing
1.75 mg subcutaneous PRN|administer about 45 minutes before activity|max 1 dose per 24 hours
Cholecystokinin-8 Dosing
physiologic secretion|research-dependent
Bremelanotide Side Effects
- ⚠nausea
- ⚠flushing
- ⚠headache
- ⚠transient blood pressure increase
Cholecystokinin-8 Side Effects
- ⚠abdominal cramping
- ⚠nausea
- ⚠biliary contraction
Research Overview
Bremelanotide
Human studies and approval data support meaningful effects on sexual desire in women, with a central mechanism involving melanocortin signaling. It is one of the most clinically relevant peptides in this category and is commonly used as the reference compound for PT-141-type research.
Cholecystokinin-8
CCK-8 is a canonical gut hormone fragment with extensive documentation in digestive physiology and appetite control. Sulfation of the tyrosine residue is important for high-affinity receptor activity.
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