Gonadorelin Dosage Guide: Research Protocols, Timing & Reconstitution

Standard Dosage Range

Research dosing range: 2.5–10 mcg per pulse (subcutaneous or intravenous); diagnostic bolus injections may be higher

Educational reference only

These dosage ranges are derived from preclinical research and community protocols. No human clinical dose-ranging trials have established therapeutic doses for most research peptides. Always consult a qualified healthcare provider before starting any peptide protocol.

Dosage by Use Case

Diagnostic Testing (Pituitary Function)

100 mcgSingle dose

Duration

Single dose

Administered as a single intravenous bolus to assess LH and FSH response. Response is measured via serum hormone levels at specific intervals after injection.

Hypothalamic Amenorrhea (Fertility Restoration)

2.5–20 mcgEvery 60–120 minutes (pulsatile)

Duration

Until ovulation/pregnancy achieved

Administered via a portable pulsatile infusion pump, mimicking natural GnRH secretion. Dosing is individualized based on monitoring of LH, FSH, and ovarian response. Typical starting dose is 5 mcg/pulse.

Testosterone Replacement Therapy (TRT) Support

5–10 mcgEvery 90–120 minutes (pulsatile)

Duration

Ongoing, during TRT

Administered via a portable pulsatile infusion pump to maintain endogenous LH/FSH secretion and testicular function. Dosing is individualized based on monitoring of LH, FSH, and testosterone levels.

Timing & Frequency

For diagnostic testing, timing is not critical. For pulsatile delivery, the consistent interval is critical. Pulsatile infusions must be delivered at consistent intervals (e.g., every 90 minutes) around the clock to mimic natural GnRH secretion.

Cycle Guidance

For diagnostic purposes, no cycling is relevant. For pulsatile therapy, cycles may be implemented at the discretion of the prescribing physician, particularly if LH/FSH stimulation is no longer desired, or fertility has been achieved. Monitoring of hormone levels is recommended.

Reconstitution Reference

Quick reference for reconstituting Gonadorelin. For custom vial sizes and concentrations, use the Reconstitution Calculator.

Common Vial Size	Varies, typically 50 mcg or 100 mcg per vial
BAC Water Volume	Consult manufacturer instructions for appropriate reconstitution volume to achieve desired concentration
Concentration & Draw	Varies depending on reconstitution. Common concentrations range from 5 mcg/mL to 20 mcg/mL.
Storage	Refrigerate at 2–8°C after reconstitution. Keep lyophilized powder refrigerated or frozen (-20°C).
Stability	Reconstituted solution stable up to 24 hours refrigerated, depending on manufacturer. Lyophilized powder stable for indicated period when stored properly.

Use the Reconstitution Calculator → for precise injection volumes based on your exact vial size, water volume, and desired dose.

Frequently Asked Questions

What is the typical Gonadorelin dosage for fertility treatment?

For hypothalamic amenorrhea, gonadorelin is administered via a pulsatile pump, typically at a dose of 2.5–20 mcg per pulse every 60–120 minutes. The specific dosage is individualized based on monitoring of LH, FSH, and ovarian response.

How is Gonadorelin administered?

Gonadorelin can be administered via subcutaneous or intravenous injection. For diagnostic testing, a single bolus injection is used. For therapeutic purposes, pulsatile delivery via a portable infusion pump is the standard method to mimic natural GnRH secretion.

What is the half-life of Gonadorelin?

Gonadorelin has an extremely short half-life of approximately 2–4 minutes. This necessitates pulsatile administration to achieve sustained LH and FSH stimulation.

Does Gonadorelin require cycling?

For diagnostic uses no cycling is needed. For fertility treatments or TRT support, cycling is not typically required, but can be employed under medical supervision.