Mounjaro Click Chart

Count the clicks for your prescribed tirzepatide dose.

Pen clicks

10clicks

On a U-100 syringe

10units

Volume

0.104mL

Always verify against your vial and pharmacy label. Concentrations differ between products and batches — a vial reading 5 mg / 0.5 mL is 10 mg/mL, not 5. If your number here doesn't match what your prescriber told you, stop and call your pharmacy.

How click dosing works

Some compounded tirzepatide is dispensed in a click-dosing pen instead of a vial and syringe. Each “click” advances the plunger a fixed amount. On the common U-100 pens, one click equals one unit, so the math is the same as the syringe conversion:

clicks = (dose_mg ÷ concentration_mg/mL) × 100

Verify your pen's click value

Not every pen uses 1 click = 1 unit — some use 1 click = 2 units. The number of clicks is only safe if it matches your specific pen. Always confirm with the pharmacy that supplied it before relying on a click count.

Frequently asked

How many clicks is 2.5 mg of tirzepatide?
On a 1-click-per-unit pen at 10 mg/mL, 2.5 mg = 25 clicks (25 units). At a different concentration or click ratio it changes — verify with your pharmacy.
Is a click always one unit?
Usually, on U-100 pens — but some pens use 1 click = 2 units. Never assume; confirm the click value for your exact pen before dosing.

Medical disclaimer. Tiro is a tracking companion, not a medical device, and nothing on this site is medical advice. Always follow the titration schedule and dosing instructions from your prescriber. Never change your dose without talking to them first.