Journey Peptides Peptide Science Academy

Tool · Pharmaceutics

Reconstitution calculator

Select the compound, enter the vial and the solvent, and get the concentration, volume per dose and the exact syringe units. With a step-by-step reconstitution guide.

Calculator

Calculate your dilution

These calculations are pharmaceutical arithmetic. Always verify before drawing up the syringe.

Selecting it preloads its usual vial presentations and its unit.

Clinical evidence View technical sheet

GIP/GLP-1 co-agonist (dual incretin)

Approved for human use in specific indications.

mg

Lyophilized powder contained in the vial, in milligrams.

mL

Volume of solvent you will add, in milliliters.

You define the dose: this tool does not recommend doses. Consult the approved prescribing information and the appropriate professional judgment.

Volume per dose 0.5 mL
Syringe units 50 U
Concentration 5 mg/mL 5,000 mcg/mL
Doses per vial 4

Draw up to this mark

50 U
Each unit = 0.01 mL Representation of an insulin syringe.
Learn the full theory in Module 9 of the program Go to the module

Procedure

Step-by-step reconstitution

  1. 01

    Prepare and disinfect

    Wash your hands, work on a clean surface and disinfect the stopper of both vials with isopropyl alcohol; let it dry.

  2. 02

    Let it reach room temperature

    If the lyophilized vial was refrigerated, allow it to reach room temperature before reconstituting.

  3. 03

    Draw the solvent

    Draw the calculated volume of bacteriostatic water with a sterile syringe.

  4. 04

    Add along the wall

    Tilt the vial and inject the solvent slowly against the inner wall, not directly onto the powder.

  5. 05

    Do not shake

    Swirl the vial gently or let it stand until dissolved. Shaking can denature and aggregate the peptide.

  6. 06

    Inspect

    The solution should be clear and free of particles. If it is cloudy or has particles, discard it.

  7. 07

    Label and store

    Record the compound, the concentration and the reconstitution date, and store it refrigerated and protected from light.

Storage and stability

  • Refrigerate the reconstituted vial (usually 2–8 °C) and protect it from light.
  • Bacteriostatic water contains benzyl alcohol as a preservative; plain sterile water does not and shortens shelf life.
  • Avoid repeated freeze–thaw cycles: they degrade and aggregate the peptide.
  • Always respect the expiry indicated by the manufacturer after reconstitution.

Important notice. This calculator is an educational tool supporting arithmetic calculation. It does not recommend doses, is not a clinical indication and does not replace professional judgment or the product’s prescribing information. Many of the compounds listed are marketed for research purposes only and are not approved for human use: check each one’s status in its technical sheet and the regulation in your country. Always verify the calculation before administering anything.