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Mounjaro Injection: 7 Helpful Tips for Arm Thigh and Stomach

Here are helpful tips and things to know when doing the Mounjaro arm injection.

We are continuing our series of Mounjaro tips, and covering the topic of the actual injection. Does it hurt? How do I do it? What can I expect? Where is the best place to inject Mounjaro for weight loss? We’ve got you covered!

Helpful Mounjaro Injection Tips

The Eli Lilly Tirezepatide info sheet that in included in your monthly box shows you 3 different Mounjaro injection sites. We are breaking down the process and what you need to know and what we’ve learned after using Tirezepatide now for over 10 months.

mounjaro injection tips
mounjaro injection tips

Here are 5 things to know and helpful information.

Everyone is Different

Our bodies are a marvelous and unique thing to each of us. That said, what works for me may not work for you. The way the Tirezepatide interacts and absorbs will vary with each person.

we are all different & what works for one doesn't mean it will work for all
mounjaro reactions different for each person

If you have switched between the thigh, arm and stomach – you may notice a difference, such as less Mounjaro side effects, more hunger suppression or one sight might be a better injection site for you personally.

Choosing Where to Inject

As mentioned, there are 3 locations that Eli Lilly says to inject Mounjaro. These are your arm, thigh or stomach.

mounjaro injection areas stomach thigh back of arm
mounjaro injection areas

Typically, if this is your first time using Mounjaro – you will want to choose a location that you feel most comfortable injecting. Talk to your healthcare provider if you need assistance in choosing a site.

Prepping for Your Mounjaro Injection

Before doing your weekly Mounjaro injection, you will want to use alcohol to sanitize the area you inject. It also is best to have clean hands – so wash your hands!

Be Careful After Unlocking the Mounjaro Pen

The Mounjaro pen comes in a locked position with a cap over the needle. Ensure that you are ready for the injection before unlocking the Mounjaro pen.

mounjaro pen indicator
mounjaro pen indicator

Holding the Pen in Place After Injection

After you have sanitized your area, placed the pen to injection site, changed from lock to unlock and press the purple injection button, you will want to hold the pen at the site for 10 seconds.

Note: this is not per the official directions. While you will hear a click after the needle retracts, I find it helpful and reassuring to count to 10.

Does the Mounjaro Injection hurt?

This again is something that will vary from person to person. The Mounjaro injection for me personally feels like a pinch. That said, I personally make sure that the pen has been out of the refrigerator and is room temperature.

will the mounjaro injection hurt
does mounjaro injection hurt

Typically this is just a matter of taking Mounjaro out of the refrigerator a few hours before my shot. This isn’t required though! Keep reading, we talk more about your pen, storing and keeping it at room temperature.

What to Know About Mounjaro Arm Injection

While typically most people are using the thigh or stomach, what about the arm? Let’s chat.

what to know about mounjaro in the arm
mounjaro injection in the arm

Where is the Best Place to Inject Mounjaro for Weight Loss

If you are looking for the best place to inject Mounjaro for weight loss, from personal experience – I would say the arm.

Recently moving from the stomach to the arm – personally has been a game changer. Keyword, PERSONALLY. That said, you need to know that your body is not mine!

what is the best mounjaro injection site for weight loss?
Where is the Best Place to Inject Mounjaro for Weight Loss

Why do I think for ME the best place to inject Mounjaro for weight loss is the arm? Since moving injection sites – I’ve experience increase appetite suppression and minimal side effects. While originally I started with Mounjaro injections in the stomach, I then moved to the leg and now the arm.

You can rotate Mounjaro injection sites. The best thing is to find out what works best for you. Every person will experience Tirezepatide differently.

If you are interested in trying the Mounjaro arm injection – you will need someone else to actually do the back of the upper arm shot. You cannot do a Mounjaro arm injection by yourself!

FAQ About Mounjaro Injections

We’ve rounded up several of your questions (and what we wanted to know before) and provided the answer in regards to Mounjaro injections

Can I use the Mounjaro pen cold?

Yes, though some say that using the Mounjaro pen directly taken out of the refrigeration results in more of a sting. That said, there is no official literature stating that you can’t use the Mounjaro pen cold.

Are air bubbles in my Mounjaro pen normal?

Per Eli Lilly instructions – air bubbles are normal in your Mounjaro pen.

What if there is a drop of liquid or blood on my skin after injecting?

Seeing a drop of blood or liquid after injecting is normal. It’s best not to rub the injection site, just press a gauze or cotton ball over the liquid.

How long can I keep Mounjaro at room temperature?

Mounjaro can be kept at room temperature (up to 86 degrees Fahrenheit) for up to 21 days.

How do I store Mounjaro?

You will need to store your box of Mounjaro in the refrigerator. The temperature will need to be between 36 degrees and 46 degrees Fahrenheit or 2 degrees to 8 degrees Celsius.)

Can I freeze Mounjaro?

No, you cannot freeze Mounjaro. If a pen has been froze, throw is away as it isn’t of use.

What if I have issues with my pen?

If you are having Mounjaro issues, Lilly has a support team that can help you. You can contact them at 1-800-LILLY-RX or 1-800-545-5979. Make sure to put the cap on and safely store your pen until you talk to the Lilly team.

How do I dispose of my Mounjaro injection pen?

Make sure that after using your pen, you place the cap over the needle. Keep away from children (before and after use.)

To dispose of your Mounjaro injection pen, you will ideally want to put your used pen into an FDA-cleared sharps container after use. These are readily available at your local pharmacy or on Amazon. When your sharps disposal container is almost full, you will need to follow your community guidelines for the proper disposal of the container. Learn more about sharps disposal on the FDA website.

Can I inject Mounjaro by myself?

Yes, you or someone else can perform the injection in either the stomach or thigh. If you are going to inject Mounjaro in the arm, you will need assistance and someone else to do the injection.

How long until I feel the effects of Mounjaro?

Typically within 24 hours hunger suppression will begin. Mounjaro side effects vary per person, but usually start anytime within the first few hours to the first few days following a shot.

This information is for educational use only. Any medical advice should be discussed specifically between you and your medical professional. Information provided here is not

We are excited to expand our keto content to include other solutions our community is using to achieve optimal health. While we understand that this may not be for everyone, we do know that people are seeking information about obesity as a disease and solutions, such as Wegovy, Ozempic / Semaglutide and Mounjaro / Tirezepatide / Zepbound.

Please direct any questions in regards to personal use with your doctor and any questions in regards to coupons, etc should be discussed with your pharmacy or with the pharmaceutical customer service.

Mounjaro Arm Injection – 7 Helpful Things to Know is part of the Keto Dirty series on Mounjaro Weight Loss

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