Cagrilintide peptide calculator
A 5 mg Cagrilintide vial mixed with 2 ml of bacteriostatic water holds 2.5 mg/ml. A 450 mcg dose is 0.18 ml — 18 units on a U-100 insulin syringe — and the vial holds 11 doses of that size.
Cagrilintide dosage chart: units to draw
Units on a U-100 insulin syringe (100 units = 1 ml) for Cagrilintide doses from 160 mcg to 2.4 mg, by how much bacteriostatic water is in a 5 mg vial. The highlighted row is the 450 mcg dose used above.
| Dose | 1 ml water 5 mg/ml | 2 ml water 2.5 mg/ml | 3 ml water 1.67 mg/ml | Doses per vial |
|---|---|---|---|---|
| 160 mcg | 3.2 u 0.032 ml | 6.4 u 0.064 ml | 9.6 u 0.096 ml | 31 |
| 300 mcg | 6 u 0.060 ml | 12 u 0.12 ml | 18 u 0.18 ml | 16 |
| 450 mcg | 9 u 0.090 ml | 18 u 0.18 ml | 27 u 0.27 ml | 11 |
| 600 mcg | 12 u 0.12 ml | 24 u 0.24 ml | 36 u 0.36 ml | 8 |
| 1.2 mg | 24 u 0.24 ml | 48 u 0.48 ml | 72 u 0.72 ml | 4 |
| 2.4 mg | 48 u 0.48 ml | 96 u 0.96 ml | 1.44 ml over 100 u | 2 |
A 18-unit draw fits comfortably on a 0.3 ml insulin syringe (30-unit capacity), whose 1-unit (often half-unit) markings are easier to read than the 2-unit ticks on a 1 ml syringe.
Unit math only, not a dosing recommendation. The dose range is what published protocols and trials describe; see the Cagrilintide guide for sources.
How to reconstitute Cagrilintide
- Wipe both vial stoppers with a fresh alcohol swab and let them dry.
- Draw 2 ml of bacteriostatic water into a syringe.
- Insert the needle at an angle into the Cagrilintide vial and let the water run slowly down the inner wall — do not inject directly onto the powder.
- Do not shake. Gently swirl the vial until the peptide fully dissolves.
- Storage for Cagrilintide: Lyophilized: refrigerated. Reconstituted: refrigerated, use within 28 days.
- For a 450 mcg dose, draw to the 18-unit mark (0.18 ml) on a U-100 insulin syringe.
About Cagrilintide
Cagrilintide is a long-acting amylin analog developed for once-weekly subcutaneous dosing. It is being studied primarily in combination with semaglutide (CagriSema) for obesity and type 2 diabetes.
Half-life: Approximately 6 days (once-weekly dosing)
Typical dose range: Trial titration: 0.16 → 0.30 → 0.60 → 1.2 → 2.4 mg weekly
Class: Long-acting amylin analog
Regulatory status: Investigational. Not FDA approved. Developed for combination with semaglutide (CagriSema).
Read the full Cagrilintide guide → — mechanism, side effects, storage, regulatory status and citations. Or browse the whole peptide glossary.
Other tools for Cagrilintide
Calculators for related peptides: AOD-9604, Liraglutide, MOTS-c, Retatrutide, Semaglutide.
Need a different unit or a different question? The peptide dose converter moves a dose between mcg, mg and IU, and the Cagrilintide half-life chart shows how concentration accumulates across a dosing cadence. Loading Cagrilintide into a reusable 3 ml pen instead of drawing it with a syringe? The peptide pen calculator turns the same vial into mcg per click and clicks to dial. All of them are listed on the free peptide tools page.
Cagrilintide calculator FAQ
Is this a Cagrilintide peptide calculator or a reconstitution calculator?
Both. This Cagrilintide calculator converts vial strength, bacteriostatic-water volume, and target dose into milliliters and insulin-syringe units. It does not recommend a medical dose.
How much bacteriostatic water for a 5 mg Cagrilintide vial?
This page is pre-filled with 2 ml of bacteriostatic water for a 5 mg Cagrilintide vial because that is a common research ratio. You can adjust the water amount in the full calculator.
How many units is a 450 mcg Cagrilintide dose?
18 units on a U-100 insulin syringe, when a 5 mg vial is mixed with 2 ml of bacteriostatic water (2.5 mg/ml). That is 0.18 ml. With a different amount of water the unit count changes — the dose chart on this page lists 1 ml, 2 ml, 3 ml mixes.
How many doses are in a 5 mg Cagrilintide vial?
11 doses of 450 mcg. The number of doses depends only on vial strength and dose size — adding more or less water changes the volume of each draw, not how many draws the vial holds.
Does this Cagrilintide dosage calculator give medical advice?
No. It only performs unit math. Dosing, titration, and whether Cagrilintide is appropriate are clinical decisions that should be made with a licensed healthcare professional.
Skip the math — let the app handle it
Peptide Protocol remembers your Cagrilintide vial, shows the units for every dose, tracks what is left, and rotates injection sites for you.
Get the iPhone app →Educational use only. Peptide Protocol is an informational tool. Nothing on this page constitutes medical advice. Many peptides are prescription-only or restricted in your jurisdiction. Always consult a licensed healthcare professional before injecting any compound.