Gonadorelin vs Teduglutide
Side-by-side comparison of key properties, dosing, and research.
Sexual Health & LibidoAnti-Aging & Longevity
GonadorelinRecovery & Repair
Teduglutide- Summary
- Gonadorelin is the synthetic form of endogenous GnRH (gonadotropin-releasing hormone). It stimulates the pituitary to release LH and FSH, maintaining testicular function and testosterone production. Widely used alongside TRT to prevent testicular atrophy and preserve fertility.
- Teduglutide is a GLP-2 (glucagon-like peptide-2) analog with enhanced stability. Unlike GLP-1, GLP-2 specifically acts on the intestinal epithelium to increase intestinal length, villus height, and absorption surface area. FDA-approved as Gattex for short bowel syndrome, it is also being investigated for IBD, leaky gut, and mucosal healing.
- Half-Life
- ~2–4 minutes (extremely short); pulsatile dosing required to avoid desensitization
- ~2 hours; once-daily dosing due to gut-specific residence
- Admin Route
- SubQ, Intranasal
- SubQ
- Research
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- —
- Typical Dose
- 100 mcg
- 0.05 mg/kg/day
- Frequency
- Twice daily (every 12 hours)
- Once daily
- Key Benefits
- Maintains testicular size during TRT
- Preserves fertility and sperm production during testosterone use
- Stimulates endogenous LH/FSH production
- Maintains HPG axis function during exogenous hormone use
- Used for HCG-free TRT protocols
- Helps restart natural testosterone production (PCT)
- Increases intestinal villus height and absorption surface area
- Reduces intestinal permeability (leaky gut)
- FDA-approved for short bowel syndrome
- Reduces parenteral nutrition dependence in SBS patients
- Promotes intestinal mucosal healing in IBD
- Increases tight junction proteins ZO-1 and occludin
- Side Effects
- Injection site reactions
- Headache
- Nausea at initiation
- Tachycardia (rare)
- +1 more
- Injection site reactions
- Abdominal pain and bloating
- Nausea
- Risk of intestinal polyp growth (requires colonoscopy surveillance)
- +1 more
- Stacks With
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