See exactly how many units of semaglutide to draw, based on your vial size, the BAC water you added, and your prescribed dose. Free, instant, no email. Educational only — your dose comes from your provider.
Semaglutide is a once-weekly injectable GLP-1 medication that's become one of the most widely used tools for weight and metabolic health. It works by mimicking a natural gut hormone that slows how fast your stomach empties, tells your brain you're full sooner, and quiets the constant “food noise” a lot of people struggle with. It's been used to support appetite control, steadier blood sugar, and real weight loss over time, and it's the active compound behind the brand names Ozempic and Wegovy. Because it's a prescription medication, it's meant to be started low and titrated up slowly under a licensed provider — this page is simply here to help you understand it and handle the reconstitution math.
A calculation helper — not a dosing recommendation.
For educational purposes only. This tool performs arithmetic on values you enter and is not medical advice, a prescription, or a recommendation to use any substance. Consult a licensed physician.
Reconstituting just means mixing your semaglutide powder with bacteriostatic (BAC) water so it becomes an injectable liquid. The calculator above does the arithmetic — here's the plain-English version of what's happening, in my words. This is educational only: your actual dose and how you use it come from your licensed provider.
It depends on the vial size and your preferred concentration — 1–2 ml of BAC water is common. More water means a larger, easier-to-measure volume per dose; less water is more concentrated. The calculator above shows the units for whatever amount you add, and your pharmacy usually specifies the exact amount.
Enter your vial mg, the water you added, and your dose above. Semaglutide doses are usually given in mg (0.25 mg, 0.5 mg, 1 mg, etc.), so convert to mcg when entering (0.25 mg = 250 mcg). The calculator returns your exact units on a U-100 syringe.
Semaglutide is the active compound; Ozempic and Wegovy are brand names. It's a prescription medication meant to be titrated slowly under a licensed provider.
No — semaglutide is a prescription medication and belongs with a licensed provider and licensed pharmacy, not a gray-market vial. HelixMD handles that properly. This calculator is an educational tool, not a recommendation to self-source.
Semaglutide is a prescription medication. Through HelixMD, licensed providers handle the consult and prescribing, and licensed pharmacies fulfill with tested, pharmacy-grade product — properly dosed and supervised, not a gray-market vial. Start with a quick, no-obligation eligibility check.
Find your program →Not a purchase or a prescription request. Prescription treatment, if clinically appropriate, is available only after a licensed provider consultation.
