Cholecystokinin-8 vs Teduglutide
Head-to-head comparison of Cholecystokinin-8 (Cholecystokinin (sulfated C-terminal octapeptide, CCK-8)) and Teduglutide (Teduglutide (glycyl-2 human glucagon-like peptide-2 analog)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Cholecystokinin-8 | Teduglutide |
|---|---|---|
| Category | Endocrine Peptides | Gastrointestinal |
| Full Name | Cholecystokinin (sulfated C-terminal octapeptide, CCK-8) | Teduglutide (glycyl-2 human glucagon-like peptide-2 analog) |
| Molecular Weight | 1143.2 Da | 3752 Da |
| Half-Life | 1-2 min | approximately 2-3 hours |
| Amino Acids | DY(SO3H)MGWMDF-NH2 | 33 |
| Typical Dose | physiologic low-picomolar-nanomolar range|research-dependent | 0.05 mg/kg/day |
| Route | endogenous secretion|research IV/SC | Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 97 | 300 |
| Research Status | Endogenous | Clinical |
Cholecystokinin-8 Benefits
- ✓gallbladder contraction
- ✓pancreatic enzyme release
- ✓satiety signaling
Teduglutide Benefits
- ✓mucosal-growth
- ✓absorption-support
- ✓barrier-repair
- ✓intestinal-adaptation
Cholecystokinin-8 Dosing
physiologic secretion|research-dependent
Teduglutide Dosing
0.05 mg/kg once daily subcutaneous injection|chronic maintenance dosing in approved use|monitor fluid status and intestinal anatomy
Cholecystokinin-8 Side Effects
- ⚠abdominal cramping
- ⚠nausea
- ⚠biliary contraction
Teduglutide Side Effects
- ⚠abdominal pain
- ⚠fluid retention
- ⚠polyp/neoplasia monitoring needed
Research Overview
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.
Teduglutide
Teduglutide has robust clinical evidence showing improved intestinal absorption and reduced parenteral nutrition dependence in short bowel syndrome. Its mechanism, via GLP-2 receptor activation, makes it highly relevant to mucosal healing and intestinal adaptation research.
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