This page is reference information only. Most compounds described here are research chemicals, not FDA-approved medications. MyTRT does not sell, recommend, or endorse the use of these substances. Always consult a qualified physician.
Gonadorelin Acetate (GnRH)
Gonadotropin-Releasing Hormone (Synthetic)
/WHAT_IT_IS
Gonadorelin is a synthetic decapeptide identical to endogenous GnRH. In research, it’s used to probe and modulate the hypothalamic–pituitary–gonadal (HPG) axis by triggering pituitary release of LH and FSH. Pulsatile delivery mimics physiology and stimulates gonadotropins; continuous exposure desensitizes GnRH receptors and suppresses the axis.
/USAGE
Employed for LH/FSH stimulation tests, modeling ovulation/spermatogenesis with pulsatile infusion, and creating suppression models (continuous infusion) for endocrine studies.
/MECHANISM_OF_ACTION
Binds GnRH receptors on pituitary gonadotropes, activating Gq/11→PLC→IP3/DAG signaling, raising intracellular Ca²⁺ and causing LH/FSH secretion. Pulse frequency/amplitude bias LH vs FSH output; continuous exposure leads to receptor downregulation and decreased gonadotropin release.
Reported Benefits
- +Acute LH/FSH surge (diagnostic stimulation)
- +Physiologic HPG-axis modeling via pulsatile dosing
- +Supports ovulation/spermatogenesis models
- +Continuous dosing enables suppression paradigms
Reported Side Effects
- −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
/STACKED_WITH
/RESEARCH_NOTES
Outcome measures often include timed LH/FSH sampling, estradiol/testosterone, and ultrasound/gonadal metrics. Distinguish clearly between pulsatile (stimulatory) and continuous (suppressive) designs to match study goals.
/RELATED
Browse all 89 in the app.
MyTRT's in-app library has the same 89 peptide entries plus dosing notes, stack builders, and the ability to log them alongside your TRT protocol.