Does Ozempic Need to Be Refrigerated? Semaglutide Storage Guide

Yes. A new, unused Ozempic® pen must be kept in the refrigerator at 36°F to 46°F (2°C to 8°C) until you start it, and never frozen. Once you've used it, the pen can stay in the fridge or at room temperature between 59°F and 86°F (15°C to 30°C) for up to 56 days, then it goes in the trash even if medicine is left, according to the Ozempic prescribing information revised in June 2026. Ozempic tablets don't go in the fridge at all. Wegovy® pens have a different clock (28 days out of the fridge), and compounded semaglutide vials follow the pharmacy's label, with the FDA advising you to discard them 28 days after first use.

Here is every semaglutide product's storage rule in one place, from the FDA labels as of November 2026:

Every injectable form shares two hard limits: never freeze it, and never let it get hotter than 86°F (30°C). If you're getting compounded semaglutide, the storage directions and beyond-use date are on the vial's pharmacy label. Through MaxLife, compounded semaglutide is $89 a month, flat, the same price at every dose, with free expedited shipping from licensed partner pharmacies if a licensed provider decides it's right for you.

Does Ozempic Need to Be Refrigerated Before First Use?

Yes. The Ozempic label says that before first use the pen "should be stored in a refrigerator" between 36°F and 46°F, not in the freezer and not directly next to the refrigerator's cooling element. It must stay in its original carton until you use it, which protects it from light. Kept this way, an unused pen is good until the expiration date ("EXP") printed on it.

The reason is chemistry. Semaglutide is a peptide, a chain of amino acids, and heat and light break it down. In a 2026 lab study, a dilute semaglutide solution lost about 12.6% of its intact drug after an hour at 140°F (60°C), and about 12.4% after 24 hours in direct light. Those were deliberately harsh tests on a lab solution, not a pen from a pharmacy, but they show which way heat and light push the medicine. Cold slows that down, which is why the unopened pen lives in the fridge.

What If an Unopened Ozempic Pen Was Left Out of the Fridge?

It may still be usable, with a shorter clock. The label doesn't give room-temperature time for an unused pen, but Novo Nordisk's medical information page on storage does. It says Ozempic "can be used as long as the product has not been exposed to temperatures below 36°F or above 86°F," and that if it "was exposed to non-refrigerated temperatures (any temperature above 46°F), the product must be used or discarded within 56 days." It also says to check the medicine for changes in color or clarity, or for particles.

In practice:

• Left out at normal room temperature (up to 86°F): count 56 days from the day it first sat out, even if you put it back in the fridge, and write the date on the carton.
• It got hotter than 86°F, or you don't know how hot it got: don't use it until you've asked your pharmacist or Novo Nordisk.
• It froze: don't use it.

How Long Can Ozempic Be Out of the Fridge?

Up to 56 days once you've used the pen for the first time. After first use, the label lets you keep the pen in the refrigerator or at room temperature between 59°F and 86°F, and either way you throw it away 56 days after first use, "even if it still has OZEMPIC left in it." The pen instructions suggest writing the disposal date on your calendar.

A few rules come with that freedom:

• Keep the pen cap on when you're not using it, and keep it away from heat and sunlight.
• Take the needle off after every injection and store the pen without a needle attached. Use a new needle each time.
• The 56 days run whether the pen sits in the fridge or on a shelf. Putting it back in the fridge doesn't extend them.

Does Ozempic work better if it's kept in the fridge? No source says so. Cold storage keeps an unused pen stable until its expiration date, but once a pen is in use, the label treats the fridge and room temperature the same.

Ozempic Single-Dose Syringes Have a 28-Day Limit

Ozempic also comes in single-dose prefilled syringes (0.25 mg, 0.5 mg and 1 mg), added to the label in 2026, and they follow different rules. Store them in the fridge in their carton. If needed, a syringe can be kept out of the fridge at 46°F to 86°F for up to 28 days. Write down the date you took it out, throw it away if you haven't used it within 28 days, and discard each syringe after its one dose.

Do Ozempic Tablets Need to Be Refrigerated?

No. Ozempic tablets and Rybelsus, both oral semaglutide for type 2 diabetes, are stored at room temperature, 68°F to 77°F, with short trips between 59°F and 86°F allowed, according to their shared label. Keep them in the original bottle to protect them from moisture. Novo Nordisk's Ozempic FAQ for health care providers adds that the pills should not be refrigerated and should not go into a pill organizer.

Does Wegovy Need to Be Refrigerated?

Yes, every injectable form of Wegovy should be kept in the fridge at 36°F to 46°F until you need it, but the time it can spend outside depends on the device. The Wegovy label, revised in June 2026, covers these forms:

For every injectable form, the Medication Guide says to throw it away if it has been frozen, exposed to light or exposed to temperatures above 86°F. Keep single-dose pens and syringes in their carton until you use them, and keep the pen cap on until you're ready to inject: the pen instructions say a single-dose pen is no longer sterile if the cap was pulled off and put back on. The Wegovy FAQ repeats the 28-day rule for the single-dose pen.

The Wegovy pill (25 mg once a day) is the easy one to travel with: keep it in its original bottle, tightly closed, in a dry place. Our Wegovy pill vs injection guide compares the two forms.

Does Compounded Semaglutide Need to Be Refrigerated?

In most cases, yes, but the label on your vial is the rule. Compounded semaglutide is prepared by a licensed pharmacy for one patient's prescription and is not FDA-approved, which means the FDA hasn't reviewed it for safety, effectiveness or quality. There is no national shelf life for it: the pharmacy sets the storage temperature and a beyond-use date based on how it prepared the medicine, under United States Pharmacopeia (USP) standards for sterile compounding. The Ozempic and Wegovy rules above don't transfer to a compounded vial.

Once you puncture a multi-dose vial, the FDA's advice is clear. Its page on unapproved GLP-1 drugs, current as of October 2026, says to discard the vial within 28 days after first use, "even if medication remains in the vial," and even if the compounder's instructions say it can be used longer. It also says to use a new, sterile needle and syringe for every dose.

The FDA has seen the 28-day limit ignored. In an August 12, 2026 letter to state medical boards, it described patient reports of vials holding far more than 28 days of medicine and patients being told to keep using vials past 28 days. For weekly dosing, it suggested labels like "Discard vial after the 4th injection." The same letter warns that compounded GLP-1 medicines "often have different concentrations" than the brands, so dose volumes are not interchangeable. Our semaglutide dosage chart explains how doses are set.

If a compounded shipment arrives warm or the ice packs are fully melted, don't use it. The FDA recommends that patients "not use any injectable GLP-1 drug that arrives warm or with insufficient refrigeration." Contact the dispensing pharmacy or your care team for a replacement.

Here is how MaxLife works. MaxLife is a telehealth patient management platform, not a pharmacy or drug maker. A licensed provider reviews your online intake, health history and clinical records, usually within 24 hours, can follow up with questions, and you can ask for a video visit. If the provider decides compounded semaglutide is right for you, a licensed partner pharmacy prepares and dispenses it, with the storage directions and beyond-use date on the label. Compounded semaglutide is $89 a month, flat, the same price at every dose, and includes the provider's review and follow-up, the medicine if prescribed, supplies, free expedited shipping and free ongoing medical support, with no membership fee. No insurance is needed, HSA and FSA funds may be eligible, and MaxLife serves all 50 states, has a Spanish-speaking team and is LegitScript certified.

Compounded semaglutide is a lower-cost cash option for weight management, not a substitute for Ozempic in treating type 2 diabetes. If your insurance covers Ozempic or Wegovy, the brand may cost you less; see our semaglutide cost guide and how compounded semaglutide differs from Ozempic.

What Happens If Ozempic Gets Warm?

It depends on how warm. Up to 86°F (30°C) is within the label's limits for an Ozempic pen in use, and within Novo Nordisk's 56-day rule for an unused one. Above 86°F, the medicine is outside its storage conditions and may not work as well, so don't use it before checking with your pharmacist. The Wegovy Medication Guide is blunter: throw away a pen that has been exposed to temperatures above 86°F.

The most common way that happens is a parked car. In a study in Pediatrics, a dark sedan parked in the sun on a 72°F day reached 117°F inside within an hour, with about 80% of the rise in the first 30 minutes, and cracking the windows didn't slow it. Sunny windowsills, the counter next to the stove and a delivery box left on a hot porch are the other usual spots.

Novo Nordisk's administration page for health care providers also says not to use an Ozempic pen that "feels warm." If you're not sure what happened, ask before you inject.

What If Your Ozempic or Wegovy Froze?

Throw it away and get a replacement, even if it looks normal after thawing. Both labels say not to use semaglutide that has been frozen, and Novo Nordisk's provider page adds "even if it has thawed," because freezing can damage the medicine in ways you can't see. Freezing usually happens by accident: at the back of the fridge next to the cooling element, in a fridge set too cold, or when a pen rests directly on an ice pack in a travel cooler.

How Can You Tell If Semaglutide Has Gone Bad?

Look before every dose. Ozempic and Wegovy should be clear and colorless, and both labels say not to use the medicine if it looks cloudy or contains particles. Also don't use it if:

• It's past its expiration date, or past 56 days (or 28 days) out of the fridge, depending on the device.
• It was frozen, or it got hotter than 86°F.
• It's a compounded vial past its beyond-use date, or more than 28 days after first use.

Looks aren't everything. Heat can weaken a dose with no visible change, so how it was stored matters as much as how it looks. If a dose seems to stop working after a storage slip, talk to your provider rather than raising your dose on your own. Compounded medicines can look different from the brands, so ask your pharmacy what yours should look like.

Does Semaglutide Expire?

Yes. Brand Ozempic and Wegovy carry an expiration date that holds only while the unused product is stored as directed; once a pen is in use or out of the fridge, the shorter 56-day or 28-day clock applies. Compounded semaglutide carries a beyond-use date set by the pharmacy. The FDA warns that expired medicines "can be less effective or risky due to a change in chemical composition or a decrease in strength," and that some are at risk of bacterial growth, a real concern for an opened multi-dose vial.

If you've already injected an expired dose, don't take another one to make up for it. Call your provider or pharmacist, and get care promptly for spreading redness, warmth, swelling or fever at the injection site.

Where Should You Keep Ozempic in the Fridge?

On a middle shelf, in its carton, a few inches from the back wall. The label says not to store it directly next to the cooling element, where it can freeze. The door runs warmer than the rest of the fridge, according to the FDA, and the CDC's vaccine storage guidance, a useful model for any temperature-sensitive medicine, warns against door shelves, produce drawers and spots right under cooling vents. A cheap fridge thermometer next to the carton shows whether that shelf really stays between 36°F and 46°F; the CDC suggests setting the thermostat near the middle of the range, about 41°F.

How Do You Travel With Ozempic or Wegovy?

Keep it with you and keep it cool, within its time limits:

• Carry it on. Novo Nordisk's provider page says to keep Ozempic in carry-on luggage, not checked bags, and to use an insulated case that protects it from heat, sunlight and freezing. Wrap the pen so it doesn't touch the ice pack directly.
• Use the room-temperature allowance. An Ozempic pen already in use can travel at up to 86°F within its 56 days. A Wegovy single-dose pen can be out of the fridge for up to 28 days at 46°F to 86°F. Note the date the clock started.
• Refrigerate unopened pens when you arrive, and on road trips keep the medicine in the passenger cabin, not the trunk. Never leave it in a parked car.
• Get through security. The TSA allows medically necessary liquids in reasonable amounts if you declare them at the checkpoint, and ice packs or gel packs that keep medicine cool are allowed frozen, partly frozen or melted. Unused syringes are allowed when they're with the injectable medicine they go with.
• Plan around time zones. Both injections are weekly, and both Medication Guides let you change your injection day if your last dose was 2 or more days before. If you miss an Ozempic dose, the label says to take it within 5 days or skip it. Ask your provider before you shift your schedule.

The Wegovy pill needs no cooling at all; keep it in its bottle. For a compounded vial, follow the pharmacy label and ask the pharmacy how to travel with it before you go.

The Bottom Line

Ozempic needs the fridge before you start a pen: 36°F to 46°F, in the carton, never frozen. After first use, it can stay in the fridge or at up to 86°F for 56 days, then it's thrown away. Ozempic tablets and the Wegovy pill stay at room temperature, Wegovy single-dose pens get 28 days out of the fridge, and compounded vials follow the pharmacy label and the FDA's 28-day limit after first use. Anything that froze or got hotter than 86°F shouldn't be injected. If you take tirzepatide instead, see does tirzepatide go bad for Zepbound® and Mounjaro® storage. For side effects such as tiredness, see does semaglutide make you tired.