Question 1

How many doses are in a semaglutide vial?

Accepted Answer

It depends on the vial size and concentration. A common compounded semaglutide vial is 2 mL at 5 mg/mL (10 mg total). At a 0.5 mg weekly dose, that vial contains 20 doses (about 20 weeks). At a 1 mg weekly dose, the same vial contains 10 doses. Use the calculator to enter your exact vial specs.

Question 2

What concentration is compounded semaglutide?

Accepted Answer

Compounding pharmacies in the US typically supply semaglutide at 5 mg/mL or 10 mg/mL, though some use different concentrations. Always verify the concentration on your pharmacy label before calculating draw volumes. Brand-name Ozempic and Wegovy pens deliver fixed doses per click — the vial calculator is most relevant for compounded vial-and-syringe protocols.

Question 3

When should I reorder semaglutide to avoid a gap?

Accepted Answer

Most compounding pharmacies take 3–7 business days to fill and ship. A safe rule of thumb is to reorder when you have 7–10 days of supply remaining. The vial planner defaults to a 7-day lead time alert, which you can adjust based on your pharmacy's typical turnaround.

Question 4

Does the calculator work for Wegovy or Ozempic pens?

Accepted Answer

Brand-name pens (Wegovy, Ozempic) deliver fixed doses per pen and are not vial-based, so the vial calculator is less relevant. However, you can still use it to model total supply by entering the pen's total drug content as the vial volume. The pen dose counts per click are listed on the brand prescribing information.

Semaglutide Vial Calculator

Vial Depletion Planner

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