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How-to · reconstitution
In this example, 1 mL of bacteriostatic water in a 10 mg Cagrilintide vial gives 10.00 mg/mL. An example 2.4 mg amount is then 24.0 units on a U-100 syringe.
This example lands on a syringe line. More water makes a weaker mix and a bigger draw. Less water makes a stronger mix and a smaller one. The amount of Cagrilintide stays the same. Use the diluent and volume specified for your product; the arithmetic alone does not choose them.
| Water added | Concentration | Per U-100 unit | Example: 2.4 mg = |
|---|---|---|---|
| 1 mL | 10.00 mg/mL | 100 mcg | 24.0 units |
| 2 mL | 5.00 mg/mL | 50 mcg | 48.0 units |
Straight arithmetic: concentration = 10 mg ÷ liquid volume, and 1 U-100 unit = 0.01 mL. The example column shows the math at 2.4 mg; it is not a dose recommendation.
The table compares possible concentrations; it does not establish which diluent or volume suits your product. Follow its dispensing instructions.
“Hard to measure” means the example draw is below two U-100 units. “Won’t fit” means it exceeds this syringe’s capacity.
Cagrilintide is a weekly shot in weight-loss studies. It copies amylin, a natural signal that helps you feel full after eating.
The table above uses one worked example. These are the published quantities, converted into marks on a U-100 barrel at each listed liquid volume for a 10 mg vial. Where a quantity was never studied by injection, the row says so.
0.3–4.5 mg once weekly, under the skin. (phase 2 dose-finding arms, with an initial dose-escalation period of up to 6 weeks).
| Water added | Concentration | Draw, low to high |
|---|---|---|
| 1 mL | 10.00 mg/mL | 3.0 to 45.0 units |
| 2 mL | 5.00 mg/mL | 6.0 to 90.0 units |
Human trialLau DCW et al. Once-weekly cagrilintide for weight management: dose-finding phase 2 trial. Lancet 2021;398:2160-72 (PMID 34798060) · retrieved 2026-08-17
Twice the powder of the smaller vial, so the same amount draws half as far up the barrel at the same water volume. Four doses instead of two, and neither listed volume runs past the end of a syringe.
Mixed into the larger listed volume, this vial produces exactly the strength and draw the smaller vial produces at the smaller volume. The two pages print the same number for different glass.
So a unit count recognized from elsewhere confirms nothing. It is consistent with two different vials, and only the strength printed on the one in your hand settles which.
The ingredient and portion count do not establish a storage period for a specific preparation.
Four draws is what the powder divides into. How long you have to take them is not something this page can tell you.
Because the solution is stronger at any given volume, the draws land lower on the barrel and further from its top. Neither listed volume overruns the syringe here.
One example for the smaller vial is close to the barrel’s capacity. That contrast explains the volume difference, but does not establish which vial is suitable, how either product should be prepared or which is better value.
The calculator lets you enter your product’s vial strength and mixing volume, then shows the arithmetic for your syringe.
Open the Cagrilintide calculator →The arithmetic on this page is only half the question. These are the pages that carry the other half.