
Gonadorelin Acetate (GnRH)
Gonadorelin is a synthetic decapeptide identical to endogenous GnRH. In research, it’s used to probe and modulate the hypothalamic–pituitary–gonadal (HPG) axis…
Half-life
Very short plasma half-life (~2–4 minutes IV); functional effect prolonged with SC dosing. Sustained stimulation typically requires pulsatile delivery.
Delivery
IV/SC bolus for stimulation testing; SC pump-based pulsatile infusion (e.g., every 60–120 minutes) for physiologic models; continuous infusion for suppression; intranasal routes appear in some protocols.
Suggested dosage
Not specified
Usage
Mechanism of action
Benefits (4)
- Acute LH/FSH surge (diagnostic stimulation)
- Physiologic HPG-axis modeling via pulsatile dosing
- Supports ovulation/spermatogenesis models
- Continuous dosing enables suppression paradigms
Side effects (5)
- Flushing, headache, nausea, dizziness
- Abdominal discomfort or injection-site irritation
- Transient mood changes or fatigue
- With continuous use: hypoestrogenic/androgen-suppression symptoms (e.g., hot flashes, decreased libido)
- Rare hypersensitivity reactions