Quick Answer: Traveling with Mounjaro requires careful temperature management to keep it effective. Keep pens refrigerated if traveling for over 21 days, or below 86°F (30°C) for shorter trips. Use medical-grade travel coolers for safe transport, always carry them in your hand luggage, and check airline and international medication regulations before departure.
Traveling with chronic diseases like diabetes can be stressful, especially when your treatment depends on refrigerated and temperature-sensitive medications like Mounjaro or insulin.
Whether for a day trip, a week holiday, or a year around the globe, planning and packing your medicines and medical supplies must be well thought out to ensure they get to your destination without any issue.
Depending on the length of your trip, your destination (national or international), and your transportation means (airplane, car, boat, train), there are some precautions to take and documents to prepare to travel with Mounjaro injections.
Related article: Does Mounjaro need to be refrigerated? How to store your pens correctly?
Mounjaro Travel Cases
The temperature is the first and most important thing to consider before traveling with Mounjaro pens.
As you know, Tirzepatide, the active ingredient in Mounjaro, is a biological drug that must be refrigerated to stay effective.
According to Eli Lilly, Mounjaro’s manufacturer, your pens can only stay out of the fridge for 21 days, and when they do, they still need to be protected from high heat.
Exposure to temperatures above 86°F (30°C), even briefly, could spoil the medicine inside your pen and make it lose part or all of its potency.
These temperature restrictions imply extra care when traveling with Mounjaro, especially in two kinds of scenarios:
- You’re traveling for more than 21 days. In that case, you must keep your pens constantly refrigerated between 36°F and 46°F (2°C and 8°C).
- You're traveling for less than 21 days, but the outside temperature may get higher than 86°F (30°C). In that case, you must protect your pens from the heat and ensure they stay at room temperature.
Fortunately, we’ve got you covered. Keeping medications cool while you're traveling is our job! We’ve designed the most convenient and performant medical-grade travel coolers. Here are our best travel cases for Mounjaro pens:
Related article: What to Do If You Accidentally Leave Mounjaro Out of the Fridge
The Nomad Portable Cooler Keeps Mounjaro Refrigerated
4AllFamily's Big Nomad Travel Cooler - Carry up to 3 Mounjaro Pens!
Keeping medicines refrigerated while traveling isn't such an easy thing. We've been there, and we know about dripping ice coolers, unreliable temperatures, and lost medications.
Our Nomad cooling bottle can keep Mounjaro pens at fridge temperature between 36°F and 46°F (2°C and 8°C) for up to 30 hours with an outside temperature of 104°F / 40°C. It works with biogel freeze packs and doesn’t require electricity, making a small, lightweight cooler, easy to carry around wherever you go.
If you need to carry higher volumes or refrigerate your pens longer, check out our Voyager and Explorer models. They act like real mini-fridges and offer higher performances when plugged into any USB power source (car cigarette lighter, portable solar panel, power bank, etc.).
The Companion Soft Cooling Bag Keeps Mounjaro at Room Temperature
Now, if you only need to protect your pens from the outside heat and ensure they don’t get exposed to temperatures above 86°F (30°C) while traveling, our Companion Cooling Bag is made for you!
It’s a soft insulated cooling case that works with Biogel ice packs (included) and keeps your Mounjaro pens at a safe temperature below 79°F (26°C).
The Chillers are our latest travel coolers for medicine, requiring no ice or electricity—just water! Ideal for any trip, even remote locations, these medical cooling bags keep syringes safely between 64.4°F-79°F (18°C-26°C) for 45+ hours, even in extreme heat up to 100°F (37.8°C).
We’re always coming up with new innovative coolers for medications, so don't hesitate to browse our catalog or contact our support team. We're here to help you choose the product that best suits your personal needs.
More Tips to Keep Mounjaro Cool while Traveling
- ☂️ Always keep your Mounjaro pens in the shade.
- ☀️ Avoid direct sunlight.
- 🌡️ Use a thermometer to keep track of temperatures.
- 🚗 Never leave your injections in the car.
- 🔥 Do not place your medicine near a heat source (fireplace, stove, barbecue, hot plate, oven, burner, etc.)
- ❄️ Only take your medicine out if you have no other choice.
- 🏖️ Leave your pens at home if you go to a sunny place like the beach.
- ⏳ Keep track of the expiration date, and never use a Mounjaro pen that's been out of the fridge for more than 21 days or exposed to high temperatures even briefly.
Related article: Avoiding the Chill: Understanding and Preventing Mounjaro Freeze Damage
If you would rather watch than read, you can click on the video below.
Flying with Mounjaro
Many of you are wondering if you can take Mounjaro on a plane. Yes, you can! The Transportation and Security Administration guidelines about traveling with medications are straightforward:
- Liquid injectable medicines are allowed on the plane. The 3.4 ounces liquid restriction does not apply to medical supplies.
- You’re allowed to take needles and syringes on the plane when it’s needed for your treatment.
When flying with Mounjaro, always pack your injector pens in your carry-on bag. Never leave them in the checked luggage, as the hazardous temperature and atmospheric conditions could damage your medicine.
You can download a diabetes travel letter and a free TSA medication notification card. It's no obligation, but it may help speed up and smooth the airport security screening process.
When flying to international destinations with medications like Mounjaro, you might be required to show the following documentation:
- 🏥 A doctor’s letter
- 📜 Your medical prescriptions
- 💊 A document from your pharmacy
- 📦 The original containers and labels of the medicine
- 🛡️ Proof of medical insurance
Inquire with the embassy or local representatives or your destination country before departure.
Related article: Tips for traveling with medication internationally.
📌 Key Takeaways:
- ❄️ Temperature Control is Key – Mounjaro pens must be kept refrigerated (36°F-46°F) if traveling for over 21 days or below 86°F for shorter trips to maintain effectiveness.
- 🎒 Use the Right Travel Case – Medical-grade travel coolers, like the Nomad and Companion cooling bags, help protect Mounjaro from heat and ensure safe transport.
- ✈️ Flying with Mounjaro – Always pack Mounjaro in your carry-on, as checked luggage conditions can damage the medication. TSA allows injectable medications and syringes on planes.
- 📜 Essential Documents for Travel – Carry a doctor’s letter, medical prescriptions, original packaging, and proof of insurance, especially for international trips.
- 🚫 General Safety Tips – Keep Mounjaro pens in the shade, avoid direct sunlight, monitor temperature with a thermometer, and never leave them in a hot car.
💬 We'd Love to Hear From You:
Have you traveled with Mounjaro before? What worked best for you? Whether it's a packing tip or an experience at airport security, your insights can help others! Share your thoughts, ask questions, and join the conversation below!
📆 Article Update History:
✅ Updated: March 10, 2025
✅ Updated: June 10, 2024
Originally Published: March 8, 2023
Comments
4AllFamily Customer Care said:
Hi Kate,
Thanks for your message! You’re absolutely right—unused Mounjaro pens need to be stored in the fridge between 2°C and 8°C.
For travel, we have several coolers that are designed specifically for this purpose. The Voyager, Explorer, and Nomad all maintain a stable refrigerated temperature range of 2–8°C, making them perfect for transporting unused Mounjaro pens.
If you need any help choosing the right model for your needs or have more questions, feel free to reach out—we’re happy to help!
Best regards,
4AllFamily Team
Kate said:
Hi! Just a question. If the unused Mounjaro Pen needs to be stored in rge fridge (2-8 degrees Celsius), what travel case can be used? Only if you use the first doze from the pen, then you can keep it outside the fridge, or at a temperature below 26 degrees ( like in your cases here). But if it’s an unused one, that needs to be kept between 2 and 8 degrees?? Thank you .
4AllFamily Customer Care Team said:
Hi Diana,
Thanks for your question! Yes, Mounjaro pens need to be refrigerated, but they can stay at room temperature (below 86°F) for up to 21 days without issue.
Since you’ll be in the UK for two weeks, you don’t necessarily need to keep them refrigerated while traveling, as long as they remain within the temperature limits. However, it’s still a good idea to keep them cool (for example, in an insulated travel case) to prevent exposure to excessive heat.
If you were staying longer than 21 days, then refrigeration during travel would be necessary.
Safe travels, and enjoy your trip to the UK!
4AllFamily
Best,
Diana S S Fetterman said:
Hi, I am travelling to the UK from Atlanta next month and I need to take two Mounjaro pens with me for the 2 weeks I will be there. As they are refrigerated here do I need to still keep them cold while I am travelling. They will be put in a fridge once I arrive there.
Thank you.
4AllFamily Customer Care said:
Dear June,
Yes, the Companion cooler bag can hold 2 Mounjaro injection pens, and so do the Voyager and the Pioneer travel fridges. The Explorer and the Big Nomad can hold 3 pens, while the Medium Nomad can only hold 1.
If you have any further questions, don’t hesitate to contact our customer service for assistance,
Best regards,
4AllFamily
June Lampl said:
Can 2 Mounjaro pens fit in the companion cooler?
4AllFamily Customer Service said:
Dear Erika,
Many of our coolers are compatible with Mounjaro pens. Your choice depends on whether you need to carry your pen refrigerated (if not yet opened) or simply cool and protected from the heat (once opened).
Here are various options for at least 24 hours of cooling:
- The new Chiller cooling pouch can keep 1 to 2 Mounjaro pens cool below 79°F (26°C) for at least 45 hours.
- The Big Nomad cooling case can keep3 Mounjaro pens refrigerated for up to 33 hours and cool below 79°F (26°C) for up to 52 hours.
- The Explorer can fit 3 Mounjaro pens and keep them refrigerated for up to 52 hours and cool below 79°F (26°C) for up to 72 hours.
- The Voyager can fit 2 Mounjaro pens and keep them refrigerated for up to 33 hours and cool below 79°F (26°C) for up to 52 hours, or even for unlimited time if you plug in into a USB power source.
Don’t hesitate to contact us in the live chat or via email if you need further guidance to choose your Mounjaro travel cooler!
Warm regards and safe travels,
4AllFamily
What cooler pack to use that 1 mounjaro pen fits in & stays cool for 24 hrs?
Erika adams said:
What cooler pack to use that 1 mounjaro pen fits in & stays cool for 24 hrs?
4AllFamily Customer Care Team said:
Dear Heather,
The best is to avoid temperature fluctuations that happen when you take it out of the fridge and then back in again. If your Mounjaro injections have been out of the fridge for 9 hours, it’s best to keep them at fridge temperature. If the temperature outside is too warm, then it’s safer to put it back in the fridge. However, this would not prolong its shelf life. From the moment Mounjaro has reached room temperature, it must be used with 21 days, independently of whether or not it’s been back into the fridge.
I hope this answers your question,
Wishing you a safe and happy trip,
Warmly,
4AllFamily Customer Care Team
HEATHER MATTHEWS said:
If mounjaro is unrefridgerated for 9 hours can it be safely refrigerated again? I know you can leave it out for 21 days unrefrigerated but can it be out of the fridge and then put back in.
I am flying
Thanks so much
4AllFamily Customer Care Team said:
Dear Heather,
Most medicines are safe to go through x-ray and metal detector machines at the airport, Wegovy and Mounjaro included. However, if you’re not comfortable with it, you have the right to request a hand check instead, so feel free to do so!
Best regards,
4AllFamily Customer Care Team
Heather said:
Can the Wegovy pen go through the scanner at security or will the lights harm it? I’ve read to hand the medication to TSA & ask them not to put it on the belt. Is that true?
4AllFamily Customer Care Team said:
Hi AJ Majumdar,
Thanks for your comment! You’re right, Mounjaro does not need to be refrigerated for up to 21 days. However, according to its manufacturer, it must be protected from high heat and should never be exposed to temperatures above 86°F (30°C). Therefore, people living in or traveling to places where the outside temperature may get above that threshold do need a cooler!
Best regards,
4AllFamily!
AJ Majumdar said:
Monjauro is fine to not be refrigerated (per their own site) for up to 21 days, so you do NOT need to travel with a cooler unless you are planning to be away from a fridge for more than 21 days.
4AllFamily Customer Care Team said:
Hi Ed Feist,
The Big Nomad Cooler is back in stock so you should be able to get it now. Sorry about that, we’re having very high demand before the summer!
We do not recommend removing the pen cap because it is there to protect the medicine from light. Anyway, 3 Mounjaro pens would not fit into the Medium Nomad or the Soft Companion.
Let us know if you need anything else,
Safe travels!
4AllFamily Customer Care Team
Ed Feist said:
I need to travel with three Mounjaro pens. According to this article I need the “Big” 4AllFamily’s Nomad Travel Cooler. However, the “Big” is out of stock. If I remove the grey top of the Mounjaro pens would three of them fit in the “Medium” 4AllFamily’s Nomad Travel Cooler or maybe in the “Companion Cooling Bag”? Thank you!