Nafarelin: track every shot, units to draw and what's still active
GnRH agonist administered as a nasal spray branded as Synarel; FDA-approved for endometriosis and central precocious puberty. In the Peppy catalog, Nafarelin is reconstituted from a vial and drawn up in units on an insulin syringe, dosed in mcg, typically twice daily, with a listed half-life of about 4 hours.
Nafarelin reconstitution calculator
Nafarelin reconstitution calculator
Free in the appHow long Nafarelin stays active
Active in your system — Nafarelin
estimate for twice daily doses, half-life 4 hAn estimate from the half-life, not a measurement. Individual clearance varies. Peppy shows this curve for each protocol under Active in your system.
Nafarelin dose steps in the catalog
| Nafarelin — catalog dose ladder | Dose |
|---|---|
| Step 1 | 200 mcg |
| Step 2 | 400 mcg |
| Step 3 | 800 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 Nafarelin in Peppy
- Open the Protocols tab, tap + and search for Nafarelin (or Synarel). Form, unit and typical frequency are prefilled.
- 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.
- Pick a colour and, for injections, a site rotation order. Peppy suggests the next site each time you log.
- On shot day, the Today tab counts down and one tap opens the Log shot sheet with the body map.
- Open the protocol to see Active in your system, the half-life curve for what you have logged (Pro).
- Log a daily check-in (side effects, feelings, weight) and see it lined up against every dose in Progress.
Track Nafarelin in Peppy
Schedule, units, site rotation and reminders. Free on iPhone, no account.
Free · iPhone · no accountFrequently asked
How many units is 200 mcg of Nafarelin?
It depends on how the vial was mixed. Example: a 2 mg vial plus 2 mL of bacteriostatic water is 1 mg/mL, so 200 mcg is 0.2 mL, or 20 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 Nafarelin stay in your system?
The Peppy catalog lists a half-life of about 4 hours for Nafarelin. After roughly five half-lives, about 20 hours, 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 Nafarelin in Peppy?
Yes. Nafarelin 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 Nafarelin?
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.