Traveling with Ozempic and storing GLP-1 pens

You can fly with Ozempic and other GLP-1 pens in your carry-on: tell the TSA officer at the checkpoint, and keep the pens cool but never frozen. Each label sets its own storage rules: unused Ozempic, Wegovy, Mounjaro and Zepbound pens go in the fridge at 2 to 8 °C (36 to 46 °F), in the carton, away from heat and light. Once in use, an Ozempic or Wegovy FlexTouch pen can be kept at 15 to 30 °C (59 to 86 °F) for up to 56 days. Single-dose pens and syringes, and unopened KwikPens and multi-dose vials, may be kept out of the fridge at up to 30 °C (86 °F) for 21 to 30 days, depending on the product; new multi-dose Ozempic and Wegovy pens stay in the fridge.

The rules below are quoted from each FDA label and the TSA’s own pages. If you use a vial and syringe instead of a pen, the semaglutide units calculator and tirzepatide units calculator turn the dose your prescriber gave you into syringe units.

Storage rules, product by product

Each device has its own clock. Find yours in the table:

“Fridge” means 2 to 8 °C (36 to 46 °F) on every label; 8 °C is 46 °F, 15 °C is 59 °F and 30 °C is 86 °F. Sources: the Ozempic, Wegovy, Mounjaro and Zepbound labels.

Two details are easy to miss. The tirzepatide single-dose limit is a total of 21 days, so short spells out of the fridge add up. And the Wegovy FlexTouch prescribing information allows 15 to 30 °C once in use, while the pen’s own Instructions for Use print a narrower 20 to 25 °C (68 to 77 °F). If your home or trip falls between the two, ask your pharmacist.

Rules the labels share

• Never freeze it. All four labels say not to use a pen, syringe or vial that has been frozen.
• Keep it away from the cooling element. The Ozempic and Wegovy labels say not to store the pen in the freezer or directly next to the fridge’s cooling element.
• Keep it in the carton. The labels use the original carton to protect the medicine from light (Ozempic pens stay in it until first use).
• Protect it from heat and sunlight. Wegovy’s Medication Guide says to throw a single-dose pen away if it has been exposed to light or to temperatures above 86 °F (30 °C).
• Pens in use: cap on, no needle. The Ozempic and Wegovy FlexTouch labels say to keep the cap on and store the pen without a needle attached, with a new needle for every injection.

Sources: the four labels linked under the table.

Write the date you first used a pen, or took a single-dose pen out of the fridge, on the carton. The Ozempic Instructions for Use say to write the disposal date on your calendar.

Flying with your pens

You can take GLP-1 pens, vials and syringes on a US flight. TSA allows “larger amounts of medically necessary liquids, gels, and aerosols in reasonable quantities,” as long as you declare them at the checkpoint (TSA). Its FAQ puts that as more than 3.4 ounces or 100 mL, removed from your bag and screened separately (TSA FAQ). At security:

1. Pack pens in your carry-on

   TSA allows liquid medication in both carry-on and checked bags (TSA). The CDC says to pack medicines in your carry-on “in case your luggage is lost or delayed” (CDC).

2. Keep the pharmacy label

   TSA recommends, but doesn’t require, clearly labeled medication to make screening easier (TSA). The CDC suggests keeping medicines in their original labeled containers (CDC).

3. Tell the officer first

   Before screening starts, tell the officer you have medically necessary liquids. Take them out of your bag and put them in a separate bin, together with freezer packs and syringes (TSA).

4. Ask about the X-ray if you prefer

   You can tell the officer you don’t want your liquid medication X-rayed or opened. TSA then uses other steps to clear it, and you’ll get extra screening, which may include a pat-down (TSA).

5. Declare needles and syringes

   Unused syringes are allowed “when accompanied by injectable medication,” and you must declare them (TSA). TSA’s syringe pages don’t mention pen needles, so declare them with your pens.

The officer at the checkpoint makes the final decision on any item (TSA). Used syringes are allowed only in a sharps container or a similar hard-surface container (TSA). Pack used pen needles the same way. See how to dispose of needles and sharps for what to do with the container at home.

Keeping pens cool, not frozen

First, check whether you need cooling at all. If your trip fits inside your label’s out-of-fridge allowance and the pen stays at or below 30 °C, the label doesn’t require a fridge: an Ozempic or Wegovy FlexTouch pen in use can be kept at 15 to 30 °C for its 56 days, and a Mounjaro or Zepbound single-dose pen up to 30 °C for a total of 21 days. Unused Ozempic and Wegovy FlexTouch pens are different: their labels list only the fridge before first use, so ask your pharmacist before you carry spares unrefrigerated.

If you do use a cool bag:

• Ice packs are allowed. TSA lets ice packs, freezer packs and gel packs through “in a frozen, partially frozen or melted state” when they keep medically necessary items cool (TSA). Its gel ice pack page adds that you should tell the officer so the packs can be inspected (TSA).
• Don’t let the pen freeze. A pen pressed against a frozen pack can freeze, and a frozen pen can’t be used. Keep a layer, such as the carton or a cloth, between them.
• Avoid heat. Parked cars and sunny windowsills are out: the labels say to protect pens from heat, and none allows storage above 30 °C.
• At your hotel, a room fridge is fine if it holds 2 to 8 °C; keep the pen away from the freezer compartment.

Crossing time zones and borders

A long trip can move your usual injection day. Each label has its own missed-dose rules, and some say when you may change your weekly injection day; they’re collected in what to do if you miss a GLP-1 dose. Ask your prescriber how to handle your schedule before you go.

For international travel, the CDC suggests checking with your destination’s embassy, and the embassies of countries where you have layovers, that your medicines are allowed. It also suggests carrying copies of your prescriptions with the generic names (semaglutide or tirzepatide), asking your prescriber for a note for injectable medicines, and packing enough for the whole trip plus extra in case of delays (CDC).

Compounded vials and home deliveries

Compounded semaglutide and tirzepatide are not FDA-approved, and the FDA doesn’t review them for safety, effectiveness or quality before they’re sold (FDA). None of the label rules above apply to them. Follow the storage directions and beyond-use date on your pharmacy’s label; see how long reconstituted peptides last for how those dates work.

The FDA recommends discarding a multi-dose vial within 28 days after first use, even if medicine is left and “even if instructions from the compounder say the medication can be used for longer than 28 days.” It also recommends not using any injectable GLP-1 that “arrives warm or with insufficient refrigeration” (FDA). For other peptides, see how to store peptides.

Common mistakes

• Packing pens in checked luggage, where a lost or delayed bag means no medicine.
• Resting a pen directly on an ice pack, which can freeze it.
• Leaving pens in a parked car or in direct sun, against every label’s heat warning.
• Forgetting that out-of-fridge time adds up on tirzepatide single-dose pens and vials.
• Storing a pen with the needle still on, against the Ozempic and Wegovy FlexTouch labels.
• Using another product’s numbers. An Ozempic pen’s 56 days doesn’t carry over to a KwikPen’s 30.

Questions people ask