Semaglutide 0.25 mg in Units
How many units 0.25 mg of semaglutide is on a U-100 insulin syringe, for every common vial strength, with the line drawn.
Updated · By Niraj Kumar · 3 sources
https://checkpre.com/health/semaglutide-0-25-mg-in-units
Medication
Vial strength
Printed on the vial label, e.g. "2.5 mg/mL". Common semaglutide strengths: 1, 2.5, 5 mg/mL.
Your dose
Exactly as written on your prescription. 1 mg is 1,000 mcg.
- Dose
- 0.25 mg
- 250 mcg
- Concentration
- 2.5 mg/mL
- Exact volume
- 0.1 mL
- 10 units (1 unit = 0.01 mL on a U-100 syringe)
| Weekly dose | When | Units | mL |
|---|---|---|---|
| 0.25 mg | Weeks 1–4 | 10 units | 0.1 mL |
| 0.5 mg | Weeks 5–8 | 20 units | 0.2 mL |
| 1 mg | Weeks 9–12 | 40 units (over capacity) | 0.4 mL |
| 1.7 mg | Weeks 13–16 | 68 units (over capacity) | 0.68 mL |
| 2.4 mg | Week 17 on (usual maintenance) | 96 units (over capacity) | 0.96 mL |
| 7.2 mg | Only if prescribed after 4+ weeks at 2.4 mg | 288 units (over capacity) | 2.88 mL |
How many units is 0.25 mg of semaglutide?
0.25 mg of semaglutide is 25 units at 1 mg/mL, 10 units at 2.5 mg/mL, 5 units at 5 mg/mL. Divide 0.25 mg by your vial's mg/mL and multiply by 100 for the units on a U-100 insulin syringe. On the FDA label, 0.25 mg is the dose for weeks 1–4.
units = dose (mg) ÷ concentration (mg/mL) × 100This page uses the same method as the GLP-1 Dosage Calculator, which explains each term and assumption in full.
| Vial strength | Units | Volume | Smallest syringe |
|---|---|---|---|
| 1 mg/mL | 25 units | 0.25 mL | 0.3 mL (30 units) |
| 2.5 mg/mL | 10 units | 0.1 mL | 0.3 mL (30 units) |
| 5 mg/mL | 5 units | 0.05 mL | 0.3 mL (30 units) |
Worked example
A 0.25 mg semaglutide dose from a 5 mg vial mixed with 2 mL of bacteriostatic water.
- 1Concentration: 5 mg ÷ 2 mL = 2.5 mg/mL
- 2Volume: 0.25 mg ÷ 2.5 mg/mL = 0.1 mL
- 3Units: 0.1 mL × 100 = 10 units
- 4Doses per vial: 5 mg ÷ 0.25 mg = 20
Draw to the 10 units line, on a 0.3 mL (30 units) U-100 insulin syringe.
Frequently asked questions
Which syringe should I use for 0.25 mg of semaglutide?
At 2.5 mg/mL, 0.25 mg is 10 units, so a 0.3 mL (30 units) U-100 syringe holds it. Use the smallest syringe that holds the whole dose: its lines are closer together, so the dose is easier to measure.
How many 0.25 mg doses are in a 2.5 mg vial?
10 full doses. At one dose a week that is 10 weeks, but multi-dose vials are usually discarded 28 days after first use, so check your pharmacy's beyond-use date.
Sources
Related calculators
- Semaglutide 0.5 mg in UnitsHow many units 0.5 mg of semaglutide is on a U-100 insulin syringe, for every common vial strength, with the line drawn.
- Semaglutide Dosage CalculatorCompounded semaglutide in mg to units on an insulin syringe, for any vial strength, with the Wegovy titration converted for your vial.
- GLP-1 Dosage CalculatorTurn a prescribed semaglutide or tirzepatide dose in mg into the exact line on a U-100 insulin syringe, with the syringe drawn to scale.