On a U-100 insulin syringe, 7.5 mg of tirzepatide is 150 units (more than a 1 mL syringe holds) at 5 mg/mL, 75 units at 10 mg/mL, 50 units at 15 mg/mL, 44.1 units at 17 mg/mL, 37.5 units at 20 mg/mL, 30 units at 25 mg/mL, 25 units at 30 mg/mL.

At 10 mg/mL, the strength most often seen on compounded labels, it is 0.75 mL, which is 75 units. Use the calculator with the strength printed on your own vial.

7.5 mg of tirzepatide in units at every strength

7.5 mg of tirzepatide at every vial strength, on a U-100 insulin syringe. Listed doses are for conversion only. Your prescriber sets your dose.
Vial strengthVolumeUnits (U-100)
5 mg/mL1.5 mL150 units (more than a 1 mL syringe holds)
10 mg/mL0.75 mL75 units
15 mg/mL0.5 mL50 units
17 mg/mL0.441 mL44.1 units
20 mg/mL0.375 mL37.5 units
25 mg/mL0.3 mL30 units
30 mg/mL0.25 mL25 units

Dose ↔ units

Vial type

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Uses the vial and dose from the calculator above.

Real vials can hold slightly more or less than the label says, and a little is lost in the needle.

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Same dose, different units

At 10 mg/mL, 7.5 mg is 75 units. Drawing those same 75 units from a 20 mg/mL vial gives 15 mg, not 7.5 mg. Always check the mg/mL on the vial you are using.

In July 2024 the FDA warned about dosing errors with compounded semaglutide, including mix-ups between mg, mL and units (FDA alert). The same math applies to any vial.

Questions

How many mL is 7.5 mg of tirzepatide?

It depends on the vial: 1.5 mL at 5 mg/mL, 0.75 mL at 10 mg/mL, 0.5 mL at 15 mg/mL, 0.441 mL at 17 mg/mL, 0.375 mL at 20 mg/mL, 0.3 mL at 25 mg/mL, 0.25 mL at 30 mg/mL.

Is 7.5 mg of tirzepatide the same number of units on every vial?

No. The units depend on the strength printed on the vial: 150 units (more than a 1 mL syringe holds) at 5 mg/mL, 75 units at 10 mg/mL, 50 units at 15 mg/mL, 44.1 units at 17 mg/mL, 37.5 units at 20 mg/mL, 30 units at 25 mg/mL, 25 units at 30 mg/mL.

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