For laboratory research use only — not for human or veterinary consumption.
The Peptide Index
Dosing guide

Gonadorelin Dosage Chart & Schedule

A synthetic form of gonadotropin-releasing hormone (GnRH). It has established diagnostic and fertility uses and is also used off-label to support endogenous hormone production.

Route
Subcutaneous
Frequency
2-3x/week, or pulsatile
Half-life
Very short
Storage
Lyophilized frozen; reconstituted refrigerated.
The short answer

Gonadorelin's dose depends entirely on context: about 100 mcg once as a diagnostic agent, tiny 5-20 mcg pulses every ~90 minutes by pump for fertility, or roughly 100-200 mcg a few times weekly in off-label endocrine-support use. Its half-life is only minutes.

Figures describe how Gonadorelin is reported in the research literature and research-community references — not a recommendation for human use. For laboratory research only.

Dosage protocols

Commonly referenced research tiers. Start conservative; every compound and study context differs.

Starter support
100 mcg
About 0.1 mL of a 1000 mcg/mL mix (~10 units).
Frequency
2x/week
Weekly total
~200 mcg/week
Cycle
Ongoing alongside TRT in community use

Lower-frequency entry point in endocrine-support protocols.

Most commonStandard support
100 mcg
Often dosed every other day.
Frequency
3x/week (approx. EOD)
Weekly total
~300 mcg/week
Cycle
Ongoing

A commonly referenced testicular-support frequency.

Higher support
200 mcg
Upper end of the community per-dose range.
Frequency
2-3x/week
Weekly total
~400-600 mcg/week
Cycle
Ongoing

Top of the referenced 100-200 mcg per-dose range.

Pulsatile vs continuous changes the effect

  • Pulsatile delivery stimulates pituitary LH and FSH release.
  • Continuous, non-pulsatile exposure instead downregulates the axis.
  • This is why GnRH is used both to drive fertility and, as agonists, to suppress hormones.

Context defines the dose

  • Diagnostic use is a single dose of about 100 mcg.
  • Fertility pumps deliver 5-20 mcg pulses roughly every 90 minutes.
  • Community endocrine-support use references ~100-200 mcg a few times weekly.

Ready to run this protocol?

Dosing is only as good as the vial. Research-grade peptides are third-party tested with published COAs from our top-rated source — reconstitute with confidence and skip the guesswork on identity and purity.

Weekly schedule

A typical week on the standard support protocol (3x/week (approx. EOD)).

Mon
Tue
Wed
Thu
Fri
Sat
Sun

Dosing day Off

Gonadorelin reconstitution

2 mg vial + 2 mL bacteriostatic water = 1000 mcg/mL.

Concentration
1,000 mcg/mL
Per syringe unit
10 mcg
Draw for 100 mcg
10 units
Doses per vial
~20
Open this mix in the calculator →

From vial to injection in 6 steps

1

Wipe both vial tops

Swab the peptide vial and the bacteriostatic-water vial with fresh alcohol and let them dry.

2

Draw the water

Pull the planned amount of bacteriostatic water (2 mL) into the syringe.

3

Add it slowly

Run the water down the inside wall of the vial — don't blast the powder. Swirl gently; never shake.

4

Let it dissolve

Wait until the solution is fully clear, then refrigerate the vial.

5

Draw your dose

Pull the calculated units on a U-100 insulin syringe (~10 units for 100 mcg).

6

Store between uses

Keep the reconstituted vial refrigerated and use within its stable window.

Handling & storage

  • A 2 mg vial with 2 mL bacteriostatic water gives 1000 mcg/mL, so 100 mcg is about 0.1 mL (10 units).
  • Reconstitute gently and store the solution refrigerated.
  • The minutes-long half-life is why clinical fertility use relies on a pulsatile pump.
  • Has approved diagnostic/fertility uses; the testicular-support use is off-label.

Gonadorelin dosing FAQ

Why are there so many different gonadorelin doses?

Because the use cases differ: a one-time ~100 mcg diagnostic dose, 5-20 mcg pump pulses for fertility, and ~100-200 mcg a few times weekly for off-label endocrine support are all documented.

How do I measure 100 mcg on a syringe?

From a 2 mg vial in 2 mL water (1000 mcg/mL), 100 mcg is 0.1 mL - about 10 units on a U-100 insulin syringe.

Why does clinical fertility use need a pump instead of a few weekly shots?

Natural GnRH is released in pulses. Reproducing that pattern requires small doses every ~90 minutes, which a pump delivers; continuous exposure would suppress rather than stimulate the axis.

How often is it dosed in the community endocrine-support context?

References commonly cite 100 mcg two to three times weekly (often every other day), sometimes up to 200 mcg per dose. This use is off-label and not an established regimen.

Sources

Categories: Sexual Health · Status: Research use only. This page is educational and for laboratory research use only; it is not medical advice.