Is it normal to have liquid left in my Mounjaro pen?

When first using a Mounjaro pen it’s common to have questions, especially when you notice liquid left in the pen after all your doses. 

Let’s take a closer look at why this occurs.  

Understanding the Mounjaro pen

Mounjaro comes as a multi-dose pre-filled pen designed for subcutaneous injection (administered into the fatty tissue beneath the skin) of tirzepatide, used to treat type 2 diabetes and for weight management. Each pen contains multiple doses and is designed for ease of use, ensuring that patients can use their medication accurately.

Why is there liquid left in my pen?

Seeing liquid left in your Mounjaro pen after all four doses is completely normal. 

Here’s why:

• Each Mounjaro pen contains 3ml of liquid.

• It’s designed to deliver 0.6ml per dose, providing four doses per pen.

• The pen holds more than 2.4ml of usable liquid to ensure there’s enough for priming before each dose.

• After you’ve used all four doses, it’s normal to see some liquid left in the pen. This means it worked correctly.

• You won’t be able to dial another full dose, so it’s time to throw the pen away, even if there’s some liquid still inside.

If you’re concerned about the amount of liquid left in your pen, consult one of our clinicians. They can confirm whether your pen is functioning properly and provide guidance on your technique.

How to use the Mounjaro pen

For a detailed step-by-step guide on how to use the Mounjaro pen, watch the instructional video below. This video will walk you through the process, ensuring you’re confident and using it correctly. 

The numan take

Having a small amount of liquid left in your Mounjaro pen after the fourth dose is to be expected. The design ensures you receive all four complete doses even if some medication remains.