Secretin vs Linaclotide
Head-to-head comparison of Secretin (Human Secretin) and Linaclotide (Linaclotide) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Secretin | Linaclotide |
|---|---|---|
| Category | Gastrointestinal | Gastrointestinal |
| Full Name | Human Secretin | Linaclotide |
| Molecular Weight | 3055.4 Da | 1526.8 Da |
| Half-Life | 5-7 minutes | Active locally; negligible systemic half-life |
| Amino Acids | 27 | 14 |
| Typical Dose | 0.2 mcg/kg IV | 72-290 mcg once daily |
| Route | Intravenous | Oral |
| Purity | ≥98% | ≥98% |
| Studies Count | 800 | 1200 |
| Research Status | Clinical | Clinical |
Secretin Benefits
- ✓stimulates-pancreatic-secretion
- ✓supports-bicarbonate-release
- ✓aids-duodenal-pH-control
- ✓helps-digestive-coordination
Linaclotide Benefits
- ✓improves-bowel-movements
- ✓reduces-abdominal-pain
- ✓increases-intestinal-secretion
- ✓supports-transit
Secretin Dosing
0.2 mcg/kg IV diagnostic dose|research infusion protocols|short bolus administration
Linaclotide Dosing
72 mcg PO daily|145 mcg PO daily|290 mcg PO daily
Secretin Side Effects
- ⚠flushing
- ⚠nausea
- ⚠abdominal-cramping
Linaclotide Side Effects
- ⚠diarrhea
- ⚠abdominal-pain
- ⚠bloating
Research Overview
Secretin
Secretin is a classic GI hormone with extensive physiology literature and established diagnostic use. It remains important for studying pancreatic secretory function, biliary responses, and duodenal feedback.
Linaclotide
Linaclotide has extensive clinical evidence for chronic idiopathic constipation and IBS-C, with consistent effects on stool frequency and abdominal symptom relief. Its mechanism is local GC-C activation in the gut with minimal systemic exposure.
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