Sterile Compounding · Calculation Sheet

Reconstitute

Enter your vial size and how much bacteriostatic water you add — get the exact concentration and syringe draw for any dose.

From the catalog · Melanotropins & Tanning

Melanotan I10 mg vial

α-MSH Analog (Afamelanotide)

Common vials

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Peptide in vialmgWater addedmLTarget dosemcg

Syringe size (U-100)

Result

Concentration

2,500mcg/mL

Per unit

25mcg

Doses per vial

~20

For a 250 mcg dose, draw

10units

= 0.1 mL

100

draw to the 10 unit mark of 100 units

The math

1. Convert the vial to micrograms: mg × 1000 = mcg
2. Divide by water volume: mcg ÷ mL = mcg/mL
3. A U-100 insulin syringe holds 100 units per mL, so mcg/mL ÷ 100 = mcg per unit
4. Dose ÷ mcg per unit = units to draw.

For educational purposes only. Always confirm concentrations and dosing with a qualified healthcare professional, and follow sterile handling practices.