Gonadorelin vs AOD-9604
Side-by-side comparison of key properties, dosing, and research.
Sexual Health & LibidoAnti-Aging & Longevity
GonadorelinFat Loss & Metabolic
AOD-9604- 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.
- AOD-9604 is a modified fragment of human growth hormone (residues 177-191) with an additional tyrosine residue that significantly enhances bioavailability. Originally developed as an anti-obesity drug by Metabolic Pharmaceuticals, it stimulates lipolysis and inhibits lipogenesis without the diabetogenic effects of full GH.
- Half-Life
- ~2–4 minutes (extremely short); pulsatile dosing required to avoid desensitization
- 30-45 minutes injectable; longer with nasal spray formulation
- Admin Route
- SubQ, Intranasal
- SubQ, Intranasal, Oral
- Research
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- Typical Dose
- 100 mcg
- 300-600 mcg
- 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)
- Selective fat loss without anabolic side effects
- No effect on blood glucose or insulin resistance
- Improved bioavailability over Fragment 176-191
- GRAS (Generally Recognized As Safe) status in Australia
- Potential cartilage repair and anti-inflammatory properties
- Does not suppress natural GH production
- Side Effects
- Injection site reactions
- Headache
- Nausea at initiation
- Tachycardia (rare)
- +1 more
- Localized injection site reactions
- Headache (rare)
- Hypoglycemia risk in combination with insulin (very rare)
- Stacks With
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