Does Ozempic have to be refrigerated after opening?

No. Once you take the first dose, the label allows storage at room temperature between 59°F and 86°F or in the refrigerator. Either way, the pen must be thrown away 56 days after the first use, even if medicine is left inside.

How long can Ozempic sit out of the fridge?

A pen in use can stay at room temperature for the full 56-day window as long as it stays below 86°F and out of direct sunlight. The label does not give a separate hour limit for an unopened pen left out. If a new pen was left out, call your pharmacist before you use it.

Can I put Ozempic in my checked luggage?

TSA allows medication in checked bags, but it is a bad idea. Cargo holds can get very cold or very hot, and lost luggage means missed doses. TSA, the CDC Yellow Book, and Novo Nordisk all say to keep medication in your carry-on.

Do I need a doctor's letter to fly with Ozempic?

TSA does not require one. It recommends, but does not require, that medication be labeled to speed up screening. For international trips, the CDC suggests carrying a copy of your prescription and a letter from your clinician that lists your medications by generic name.

Can I use Ozempic if it was left in a hot car?

The label says to protect the pen from excessive heat and sunlight and to store it no warmer than 86°F. It does not say the pen is safe after a hot-car exposure. Inspect the liquid, and if you have any doubt, call your pharmacist or Novo Nordisk before you inject.

How Do You Store Ozempic and Can You Travel With It?

The short answer: Keep new, unused Ozempic pens in the refrigerator at 36°F to 46°F (2°C to 8°C). After the first injection, the pen can stay at room temperature up to 86°F or in the fridge for 56 days. Never freeze it, and never use a pen that has been frozen. Yes, you can travel with it. Carry pens in your hand luggage and declare them at the TSA checkpoint. Your weekly dose day can shift as long as 48 hours pass between doses.

How do you store an Ozempic pen before the first use?

The FDA-approved Ozempic label is specific. Before first use, the pen "should be stored in a refrigerator between 36ºF to 46ºF (2ºC to 8ºC)." Do not put it in the freezer, and do not store it "directly adjacent to the refrigerator cooling element." The back wall of many refrigerators is the wrong spot. A door shelf or a middle shelf is safer.

The Instructions for Use in the FDA label PDF add: "Unused OZEMPIC pens may be used until the expiration date ('EXP') printed on the label, if kept in the refrigerator." At every stage, keep the cap on, keep the pen away from heat and light, and keep it out of the reach of children.

How do you store the pen after the first injection?

Once you take the first dose, you get a choice. The label states that the pen "can be stored for 56 days at controlled room temperature (59°F to 86°F; 15°C to 30°C) or in a refrigerator (36°F to 46°F; 2°C to 8°C)." Novo Nordisk repeats the same numbers on the official Ozempic pen FAQ.

The 56-day clock starts at the first injection, not at the expiration date. The Instructions for Use say the pen "should be disposed of (thrown away) after 56 days, even if it still has OZEMPIC left in it." Each pen holds four weekly doses, so most people finish a pen in about 28 days. If you skip weeks, the 56-day limit matters. See our guide on the Ozempic dosing schedule for how the pens line up with the dose steps.

Two habits protect the pen between doses. First, remove the needle after every injection. The label says to "always remove and safely discard the needle after each injection and store the OZEMPIC pen without an injection needle attached." A needle left on can cause leakage and blocked needles, which can lead to a wrong dose. Second, put the cap back on to shield the medicine from light.

What if the pen got too hot or froze?

Frozen is the clear case. The label says: "Do not freeze OZEMPIC and do not use OZEMPIC if it has been frozen." Freezing can happen in a winter car, against a freezer pack in a cooler, or against the cooling plate of a fridge. Once a pen has frozen, discard it, even if it has thawed and looks normal.

Heat is less clear. The label sets 86°F (30°C) as the upper limit for a pen in use and says the medicine "should be protected from excessive heat and sunlight." It does not say how long a pen can sit above 86°F or what to do afterward. If a pen was exposed, look at the liquid. The label says Ozempic "should appear clear and colorless" and not to use it "if particulate matter and coloration is seen." A clear pen is not a guarantee of full potency. When in doubt, call your pharmacist or Novo Nordisk Customer Care at 1-800-727-6500, the number on the Ozempic FAQ page.

Can you fly with Ozempic?

Yes. Three TSA rules cover it.

Liquid medication. The TSA liquid medications page says it "allows larger amounts of medically necessary liquids, gels, and aerosols in reasonable quantities for your trip, but you must declare them to TSA officers at the checkpoint for inspection." The 3.4-ounce rule does not apply. Carry-on and checked bags are both allowed.
Pen needles. The TSA unused syringes page states that "unused syringes are allowed when accompanied by injectable medication." Keep your needles in the same bag as the pen. TSA recommends, but does not require, that the medication be labeled.
Cold packs. The TSA gel ice packs page says "medically necessary gel ice packs in reasonable quantities are allowed regardless of their physical state of matter (e.g., melted or slushy)." Tell the officer the pack is cooling medication.

Put the pen in your carry-on, not your checked bag. The CDC Yellow Book says all medications "should be carried in hand luggage rather than in checked baggage" and in their original containers. Novo Nordisk's travel guidance adds a reason: checked luggage can get lost or "exposed to temperatures that are too hot or too cold." The CDC also advises packing enough medicine for the trip "and several days afterward in the event of travel delays," plus a copy of your prescriptions.

Do you need a cooler bag? For a pen already in use, usually not. The pen is allowed at room temperature for 56 days. A small insulated pouch helps in two cases: an unopened pen that must stay at 36°F to 46°F, and a hot destination where a room or bag can pass 86°F. Keep a layer of cloth between the pen and any frozen pack. Direct contact can freeze the medicine.

How do time zones change your dose day?

Ozempic is a weekly injection, so time zones matter less than they do for a daily pill. The label says to "administer OZEMPIC once weekly, on the same day each week, at any time of the day, with or without meals." A Tuesday morning dose in New York and a Tuesday evening dose in Tokyo are both Tuesday doses. The clock time does not have to match.

If a trip lands on your dose day, the label gives room to move it. "The day of weekly administration can be changed if necessary as long as the time between two doses is at least 2 days (>48 hours)." So you can inject two days before a flight instead of on it, then keep the new day going forward. Do not shorten the gap below 48 hours.

If travel makes you miss a dose, the label says to take it "as soon as possible within 5 days after the missed dose." If more than 5 days have passed, skip it and take the next dose on the regular day. Our Ozempic missed dose article walks through the 5-day rule with examples. For a complex itinerary, the CDC recommends asking your clinician about timing before you leave. Do not change your dose amount to fit a trip.

If you take tirzepatide instead, mounjaro.md covers that pen's storage rules, which have their own room-temperature time limit.

How do you dispose of needles when you travel?

The Ozempic Instructions for Use say to put used pens and needles "in a FDA-cleared sharps disposal container right away after use." Never toss a loose needle in a hotel trash can. Housekeeping staff can get stuck.

The FDA safe sharps disposal page says: "Always carry a small, travel-size sharps disposal container in case other options are not available." Without one, the label and the FDA container guidance allow a heavy-duty plastic household container, such as an empty laundry detergent bottle, with a tight, puncture-resistant lid.

Flying home with used needles is allowed. The TSA used syringes page permits them "when transported in Sharps disposal container or other similar hard-surface container." When the container is about three-quarters full, follow your community's disposal guidelines. Do not recycle a sharps container.

Compounded semaglutide vials have storage rules set by the compounding pharmacy, not by this label. Our article on whether compounded semaglutide is the same as Ozempic explains the difference.

The bottom line

Store unused Ozempic pens in the refrigerator at 36°F to 46°F, away from the cooling element. After the first dose, keep the pen at room temperature up to 86°F or in the fridge, and throw it away 56 days after first use. Never freeze it, keep the cap on, and remove the needle after each shot. For travel, pack pens and needles in your carry-on, declare them to TSA, and bring a small sharps container. Your dose day can move as long as 48 hours pass between doses.

Last updated: September 2026. This article is for informational purposes only and does not constitute medical advice. Follow the storage and dosing instructions in your Ozempic label, and ask your pharmacist or prescriber if a pen may have been exposed to heat or freezing.