Tirzepatide Weight-Loss Units
Exact insulin-syringe units for every tirzepatide weight-loss titration step, from 2.5 mg to 15 mg.
Units per dose depend on your reconstitution
Insulin units are a volume measure, not a dose measure. A 10 mg vial with 2 mL of BAC water gives 5 mg/mL, so 2.5 mg is 0.5 mL — 50 units. The same 2.5 mg from a 10 mg vial with 1 mL of water is 25 units. Always recalculate when you change the water volume.
Standard titration steps
Tirzepatide weight-loss protocols run 2.5 mg for four weeks, then 5, 7.5, 10, 12.5 and 15 mg, holding four weeks at each step. Many people stay at 5 or 7.5 mg long-term if appetite control is adequate — escalating past the effective dose mostly adds side effects.
Reading the syringe
On a U-100 syringe, each unit is 0.01 mL. A 0.5 mL (50-unit) syringe suits most tirzepatide draws. Draw slowly, tap out air bubbles, and verify the plunger edge sits on the intended line before injecting subcutaneously in the abdomen, thigh or upper outer arm.
Missed and late doses
If a weekly dose is fewer than four days late, take it and keep the original schedule. If more than four days have passed, skip it and resume at the next scheduled day. Do not double a dose to compensate — that reliably triggers nausea.
Frequently asked questions
How many units is 2.5 mg of tirzepatide?
From a 10 mg vial reconstituted with 2 mL of BAC water (5 mg/mL), 2.5 mg is 0.5 mL, which is 50 units on a U-100 syringe.
How many units is 5 mg of tirzepatide?
From a 10 mg / 2 mL reconstitution, 5 mg is 1.0 mL, or 100 units. Using 1 mL of water instead makes it 50 units.
Where should I inject?
Subcutaneously into the abdomen at least 5 cm from the navel, the upper outer thigh, or the back of the upper arm — rotating sites each week.