Vial Guide

Survodutide 10 mg vial

How much bacteriostatic water to add to a 10 mg vial of Survodutide, the syringe units for each common dose, and how many doses the vial holds.

Water
1 mL
Strength
10 mg/mL
Common dose
3.6 mg
Draw
36 units0.36 mL
Doses per vial
2

The short answer

Mixed with 1 mL of bacteriostatic water, a 10 mg vial of Survodutide holds 10 mg/mL. A 3.6 mg dose is then 36 units (0.36 mL) on a U-100 insulin syringe, and the vial holds about 2 doses of that size. Taken 1× per week, it lasts about 2.8 weeks.

Human studies. Investigational (Boehringer Ingelheim; discovered with Zealand Pharma). In SYNCHRONIZE-1 (725 adults without diabetes) weight fell 12.2–13.0% at 76 weeks vs 5.4% on placebo, and in SYNCHRONIZE-2 (752 adults with type 2 diabetes) 8.2–9.8% vs 3.9%, counting everyone who started. Not approved anywhere and no filing announced as of early October 2026; trials in MASH (fatty liver with inflammation) continue.
Survodutide page

How much water

The water only sets the strength; the dose and the number of doses in the vial stay the same. Draws are on a U-100 insulin syringe, where 1 unit is 0.01 mL.

Water addedStrengthPer syringe unitDraw for 3.6 mg
1 mL10 mg/mL100 mcg36 units (0.36 mL)
2 mL5 mg/mL50 mcg72 units (0.72 mL)
3 mL3.333 mg/mL33.3 mcg1.08 mL

Dose chart

Syringe units for each common dose at each water volume. Select a cell to open it in the calculator.

DoseWater added
1 mL2 mL3 mL
0.6 mg
1 mg
1.5 mg
2.5 mg
3.6 mg
4 mg
6 mg

Draws over 100 units show in mL. Faded values are under 2 units, which is hard to measure. Check that your vial holds the larger volumes.

Where the doses come from

  • Trial Phase 3 maintenance doses of 3.6 or 6.0 mg once weekly, reached by stepping up from a low dose, with pauses or slower steps allowed for stomach side effects. At 76 weeks weight fell 12.2% and 13.0% vs 5.4% on placebo, counting everyone who started.
  • Trial Phase 2 tested 0.6, 2.4, 3.6 and 4.8 mg weekly: 20 weeks of step-ups every 2 weeks, then 26 weeks at the assigned dose. Mean loss was 14.9% at 4.8 mg vs 2.8% on placebo.
  • Trial MASH (fatty liver with inflammation) phase 2: 2.4, 4.8 or 6.0 mg weekly for 48 weeks, including a 24-week fast step-up. MASH improved without worse scarring in 47%, 62% and 43% vs 14% on placebo.

Doses are what labels, trials or community reports reference, not recommendations. Survodutide’s page has the cycle, side effects, cautions and sources.

Mixing and storage

  1. PrepareLet a refrigerated vial come to room temperature, and wipe both stoppers with an alcohol swab.
  2. Add 1 mLDraw 1 mL of bacteriostatic water and let it run slowly down the inside wall of the vial.
  3. Swirl, don’t shakeSwirl gently until the powder dissolves and the liquid is clear.
  4. Label itWrite the date and the strength, 10 mg/mL, on the vial.

Storage: No label exists. Usual practice: powder frozen or refrigerated; mixed vials at 2–8 °C, protected from light.

The reconstitution guide covers each step, and the units page explains syringe markings.

Questions

How much water do I add to a 10 mg vial of survodutide?

There’s no single right amount: the water only sets the strength. With 1 mL of bacteriostatic water, a 10 mg vial holds 10 mg/mL. With 2 mL it’s 5 mg/mL; with 3 mL it’s 3.333 mg/mL. Less liquid makes each dose a smaller draw; more makes small doses easier to measure.

How many units is 3.6 mg of survodutide?

With 1 mL in a 10 mg vial, 3.6 mg is 36 units (0.36 mL) on a U-100 insulin syringe. With 2 mL, 72 units (0.72 mL); with 3 mL, 1.08 mL.

How many doses are in a 10 mg vial of survodutide?

About 2 doses of 3.6 mg, or 2 of 4 mg or 1 of 6 mg. Taken 1× per week at 3.6 mg, it lasts about 2.8 weeks.

How long does a mixed vial of survodutide keep?

No label exists. Usual practice: powder frozen or refrigerated; mixed vials at 2–8 °C, protected from light.

Sources

  • le Roux et al., survodutide for obesity, SYNCHRONIZE-1 (NEJM 2026) PMID 42253238
  • Wharton et al., survodutide in obesity with type 2 diabetes, SYNCHRONIZE-2 (NEJM 2026) PMID 42820639
  • le Roux et al., phase 2 obesity trial (Lancet Diabetes Endocrinol 2024) PMID 38330987
  • Sanyal et al., phase 2 trial in MASH and fibrosis (NEJM 2024) PMID 38847460

The math on this page uses the doses and storage on Survodutide’s page.