Gonadorelin Dosage Calculator

Reconstitution math: a 2 mg vial plus 2 mL bacteriostatic water gives you 1,000 mcg/mL. At 100 mcg per dose, that's 10 units on a U-100 insulin syringe. A 5 mg vial with 2 mL BAC water gives 2,500 mcg/mL, so 100 mcg equals 4 units. The biggest beginner mistake is expecting results at 2x/week. Gonadorelin's subcutaneous half-life tops out around 40 minutes. Two injections per week leaves 3+ days of zero receptor stimulation between doses. If testicular preservation is the goal, nightly dosing at bedtime is the minimum frequency most experienced users and clinicians recommend. Reconstituted vials last about 14 days refrigerated at 2 to 8 degrees Celsius. At 100 mcg/night from a 2 mg vial, you'll use 700 mcg per week, which means the full 2,000 mcg lasts roughly 20 days (2.86 weeks). That exceeds the 14-day reconstituted stability window, so roughly 30% of the vial may need to be discarded. Consider using a smaller vial or splitting reconstitution across two vials to avoid waste. Use a 29 to 31 gauge, 1/2 inch insulin syringe. You'll barely feel the injection.