PeptulatorReconstitution and dosing maths

Semaglutide titration schedule

Every stage of the 0.25 mg to 2.4 mg ladder, in units to draw. Use the calculator for your own vial and water.

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25 printable pages: dosing cards for the twelve most-used compounds at three water volumes, titration planners, a vial log, and five pages on what to do when it has already gone wrong.

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ReviewedDose ranges and half-lives checked 3 September 2026.

The schedule

StageWeekly doseDrawU-100 unitsVials used by end
Weeks 1–40.25 mg0.1 mL10 units0.2
Weeks 5–80.5 mg0.2 mL20 units0.6
Weeks 9–121 mg0.4 mL40 units1.4
Weeks 13–161.7 mg0.68 mL68 units2.8
Weeks 17–202.4 mg0.96 mL96 units4.7

Based on a 5 mg vial with 2 mL of bacteriostatic water (2.5 mg/mL) on a U-100 syringe, stepping every 4 weeks. Change any of that and the units change, so run your own numbers in the calculator above.

How to read it

Semaglutide has a licensed ladder: 0.25 mg weekly for four weeks, then 0.5 mg, 1.0 mg, 1.7 mg and 2.4 mg, each held for four weeks before the next step. As with tirzepatide, the first rung is a starting dose for tolerance rather than a maintenance dose.

The doses are small enough that the water volume matters more here than for any other compound. A 5 mg vial in 2 mL puts 0.25 mg at 10 units. The same vial in 1 mL puts it at 5 units, where a one-unit misread is a 20 percent dosing error.

A titration ladder is a maximum pace, not a target. Holding at a lower dose for longer is a normal outcome, not a failure.

Common questions

What is the standard semaglutide titration schedule?
0.25 mg once weekly for four weeks, then 0.5 mg, 1.0 mg, 1.7 mg and 2.4 mg, stepping every four weeks as tolerated.
How many units is 0.25 mg of semaglutide?
In a 5 mg vial with 2 mL of bacteriostatic water, which is 2.5 mg/mL, 0.25 mg is 0.1 mL, or 10 units on a U-100 syringe.
What if a step is intolerable?
The licensed guidance is to hold at the previous dose for longer rather than push through. The ladder is a maximum pace, not a schedule you owe anyone.

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Before you use these numbers This is a unit-conversion tool. It turns a vial strength and a water volume into a concentration, a draw volume and a syringe mark. It does not tell you what to take, whether to take it, or whether a compound is safe for you. Most compounds listed are sold for laboratory research and are not approved for human use. Nothing here is medical advice. Dosing decisions belong with a licensed clinician who knows your history. Always check the strength printed on your own vial rather than trusting a preset.