Gonadorelin: track every shot, units to draw and what's still active

Synthetic decapeptide identical to endogenous GnRH; used for pituitary function testing and in pulsatile protocols for hypogonadotropic hypogonadism. In the Peppy catalog, Gonadorelin is reconstituted from a vial and drawn up in units on an insulin syringe, dosed in mcg, typically every other day, with a listed half-life of about 4 minutes.

CategoryHormonal
FormVial (reconstitute)
Dose unitmcg
Typical frequencyEvery other day
Half-life (catalog)~4 minutes
Also known asGnRH, LHRH, Factrel, Lutrepulse

Gonadorelin reconstitution calculator

Gonadorelin reconstitution calculator

Free in the app
10units
to draw on a U-100 insulin syringe · 0.1 mL
0102030405060708090100
Concentration1 mg/mL
Per unit10 mcg
Doses per vial20
Mathematical conversion only. Always verify with your prescriber. Gonadorelin tracker page → Save it in Peppy

How long Gonadorelin stays active

Active in your system — Gonadorelin

estimate for every other day doses, half-life 0.07 h
wk 0wk 1wk 2peak0
Half-life ~4 minutesLeft after one every other day interval 0%~5 half-lives to clear most of a dose 21 minutesLevels out after about 3 doses

An estimate from the half-life, not a measurement. Individual clearance varies. Peppy shows this curve for each protocol under Active in your system.

Gonadorelin dose steps in the catalog

Gonadorelin — catalog dose ladderDose
Step 125 mcg
Step 250 mcg
Step 3100 mcg
Step 4200 mcg

Dose steps as listed in the Peppy catalog so the picker is fast — not a recommendation. Your prescriber sets your dose; Peppy tracks it.

How to track Gonadorelin in Peppy

  1. Open the Protocols tab, tap + and search for Gonadorelin (or GnRH). Form, unit and typical frequency are prefilled.
  2. Enter your vial size, the water you added and your dose. The inline Calculator shows the units to draw and warns if it will not fit a 1 mL syringe.
  3. Pick a colour and, for injections, a site rotation order. Peppy suggests the next site each time you log.
  4. On shot day, the Today tab counts down and one tap opens the Log shot sheet with the body map.
  5. Open the protocol to see Active in your system, the half-life curve for what you have logged (Pro).
  6. Log a daily check-in (side effects, feelings, weight) and see it lined up against every dose in Progress.

Track Gonadorelin in Peppy

Schedule, units, site rotation and reminders. Free on iPhone, no account.

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Frequently asked

How many units is 100 mcg of Gonadorelin?

It depends on how the vial was mixed. Example: a 2 mg vial plus 2 mL of bacteriostatic water is 1 mg/mL, so 100 mcg is 0.1 mL, or 10 units on a U-100 insulin syringe. Change the water and the units change. Use the calculator above with your own vial, and verify with your prescriber.

How long does Gonadorelin stay in your system?

The Peppy catalog lists a half-life of about 4 minutes for Gonadorelin. After roughly five half-lives, about 21 minutes, most of a single dose has cleared. That is an estimate from the half-life, not a measurement, and individual clearance varies.

Can I track Gonadorelin in Peppy?

Yes. Gonadorelin is one of 123 compounds built into Peppy, with its form, unit and typical frequency prefilled. Add it as a protocol, set your schedule, and Peppy handles the countdown, the log and the reminders (Pro).

Where should I inject Gonadorelin?

Follow your prescriber's instructions. For subcutaneous shots the GLP-1 labels list the abdomen, thigh and upper arm and say to rotate. Peppy's body map has 13 sites, suggests the next one, and shows when each was last used. Read the site rotation guide.

More in Hormonal

Not medical advice. Peppy is a tracking tool, not medical advice. Dose calculations are mathematical conversions only. Always follow your prescriber's instructions and verify every draw-up yourself.

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