With 1 mL bacteriostatic water
24.0 units
Page last checked
Reconstitution · Cagrilintide
Cagrilintide reconstitution calculator
Pick the vial, the water you added and the dose. Get the exact draw in units for the syringe in your hand.
Step 1 of 4
- total mg in the calculation
- mL used in the calculation
- mg
This vial holds 10 mg in total.
- match the size on the package
U-100 insulin syringe · 1 mL · lines every 2 units · 1 unit = 0.01 mL
Draw to
48.0units
48.0 units on a U-100 insulin syringe · 1 mL · lines every 2 units, which is 0.48 milliliters. The draw lands on a syringe line.
10 mg ÷ 2 mL = 5.00 mg/mL
→ 50 mcg/unit · 2.4 mg = 0.480 mL = 48.0 units
→ 50 mcg/unit · 2.4 mg = 0.480 mL = 48.0 units
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Show the math and syringe details
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How to use the calculator
- 1
Enter the amount in the vial
- 2
Enter the water you added
- 3
Enter the dose you want to convert
Cagrilintide is a weekly shot in weight-loss studies. It copies amylin, a natural signal that helps you feel full after eating. Sellers offer unapproved cagrilintide for weight loss, sometimes paired with semaglutide under the name CagriSema.
A phase 2 trial found more average weight loss at higher doses. It has moved into phase 3 trials with semaglutide. Cagrilintide does not have FDA approval.
Examples using 10 mg of Cagrilintide
Each row uses 10 mg and the liquid volume shown. Dividing the amount by that volume gives the calculated concentration. The rows are arithmetic examples, not alternative product preparations.
◆ How liquid volume changes the resultdose used: 2.4 mg
With 2 mL bacteriostatic water
48.0 units
| Bacteriostatic water | Concentration | Per U-100 unit | Draw for 2.4 mg | Nearest syringe line |
|---|---|---|---|---|
| 1 mL | 10.00 mg/mL | 100.0 mcg | 24.0 u · 0.240 mL | exactly 24 u |
| 2 mL | 5.00 mg/mL | 50.0 mcg | 48.0 u · 0.480 mL | exactly 48 u |
The amount, liquid volume and dose shown here are the calculator’s starting example for Cagrilintide. Replace them with your own values. Every result in the table is calculated from those inputs.
Cagrilintide: read the volume alongside the dose
The cagrilintide examples use the same amount of medicine at different concentrations. The draw changes with the vial and water inputs. A longer draw means more liquid; it does not, by itself, mean more medicine.
Open the mixing details3 notes
Milligrams and syringe units answer different questions
Milligrams describe the amount of cagrilintide entered in the dose field. Syringe units describe how much liquid contains that amount at the calculated concentration. Keep both figures together when reading a result or comparing the worked examples.
A unit count copied from another setup can represent a different amount of cagrilintide. Matching the compound name is not enough: the vial amount, liquid volume and syringe scale must match too. The calculator shows those inputs beside the answer.
Why changing the water changes the draw
With the vial amount and target dose held fixed, more water produces a larger calculated volume. Less water produces a smaller volume. The amount of cagrilintide in that result stays the same, but the liquid volume does not.
This relationship explains the differences between rows in the table. It does not choose a preparation method or establish that two injection volumes are interchangeable. A calculation can describe a mixture without being instructions to make it.
Check capacity after changing an input
The opening cagrilintide examples fit within the reference syringe. That statement applies to the displayed inputs. Increasing the entered dose or changing the concentration changes the volume needed, so the result must be checked again.
If the calculated volume exceeds the selected syringe capacity, the tool flags that limit. The warning does not tell you to split the amount into multiple draws or to add less water. It identifies a setup the selected syringe cannot hold.
Cagrilintide alone is different from a combination treatment
The dose-finding study tested cagrilintide alone at several weekly doses. CagriSema adds semaglutide to it. These are different treatments, so a result or dose from one does not stand in for the other.
Read the supporting evidence3 supporting notes
The study included a gradual increase
Participants did not simply start at every target amount shown in the results. The trial included a period of dose increases before ongoing treatment. Its weekly dose groups were compared with placebo and with liraglutide.
One ingredient field cannot describe a blend
This tool treats the entered mass as cagrilintide alone. A blend contains other ingredients too. The total powder weight cannot tell you how much of each one is in a draw. Each ingredient needs its own stated amount.
Trial dosing does not set a mixed-vial shelf life
A weekly trial schedule is not a storage instruction for a different preparation. Calculating how many draws a vial contains cannot establish how long its contents remain usable after mixing.
The study included a gradual increase
Participants did not simply start at every target amount shown in the results. The trial included a period of dose increases before ongoing treatment. Its weekly dose groups were compared with placebo and with liraglutide.
One ingredient field cannot describe a blend
This tool treats the entered mass as cagrilintide alone. A blend contains other ingredients too. The total powder weight cannot tell you how much of each one is in a draw. Each ingredient needs its own stated amount.
Trial dosing does not set a mixed-vial shelf life
A weekly trial schedule is not a storage instruction for a different preparation. Calculating how many draws a vial contains cannot establish how long its contents remain usable after mixing.
Units to dose at 5.00 mg/mL
Mix 10 mg into 2 mL and one U-100 unit carries 50.0 mcg. The table shows how much peptide is in each numbered syringe line. These are conversion examples, not suggested doses.
Open the unit conversion table10 rows
| U-100 line | Volume | Mass (mcg) | Mass (mg) |
|---|---|---|---|
| 10 u | 0.10 mL | 500 mcg | 0.5 mg |
| 20 u | 0.20 mL | 1,000 mcg | 1 mg |
| 30 u | 0.30 mL | 1,500 mcg | 1.5 mg |
| 40 u | 0.40 mL | 2,000 mcg | 2 mg |
| 50 u | 0.50 mL | 2,500 mcg | 2.5 mg |
| 60 u | 0.60 mL | 3,000 mcg | 3 mg |
| 70 u | 0.70 mL | 3,500 mcg | 3.5 mg |
| 80 u | 0.80 mL | 4,000 mcg | 4 mg |
| 90 u | 0.90 mL | 4,500 mcg | 4.5 mg |
| 100 u | 1.00 mL | 5,000 mcg | 5 mg |
How the math works
- Concentration — divide the amount entered by the liquid volume used in the calculation: mg ÷ mL = mg/mL. This tells you how many mg are in each mL.
- Volume — the dose divided by that concentration: dose ÷ (mg/mL) = mL.
- Units — on a U-100 syringe one unit is 0.01 mL, so mL × 100 = units. A U-40 unit is 0.025 mL, so the wrong barrel is a 2.5× error. That is why the calculator asks which one you have.
- Rounding gap — the exact draw against the nearest syringe line: |exact − nearest line| ÷ exact × 100 = % difference.
Useful guides for this calculation
The math is only one part of the question. These guides cover the compound, published doses, side effects, mixing steps and supplies.
How the cagrilintide trials escalated to their top arm
Cagrilintide without an approved label: what exists instead
When cagrilintide reactions tend to appear
The Hospira vial before the cagrilintide arithmetic starts
Buying the mixing water for a cagrilintide vial
What the cagrilintide draw needs from bacteriostatic water