Wegovy Storage Guide: Shelf Life, Temperature & Travel Tips

If you have been prescribed Wegovy (semaglutide) for weight management, make sure to store it correctly. If the pen is kept in the wrong conditions, it may be less effective. It may even be unsafe to use for your weekly Understanding Wegovy Variants

Wegovy is a prescription-only weight loss medication for adults with obesity or who are overweight (with at least one weight-related comorbidity). Currently, there are two variants of Wegovy to consider.

Wegovy pens are pre-filled injection pens. These pens use a liquid formulation that is injected once per week. Wegovy pills are a new formulation, taken as a daily tablet.

Both of these medications have different storage requirements, despite using the same active ingredient (semaglutide). While there are some similarities, the storage requirements for each variant are not interchangeable. 

For Wegovy pens, storage guidance may vary depending on the type of Wegovy pen you have. The Wegovy 7.2mg single-use pen should be stored in the fridge between 2°C and 8°C before use.

During use, it can be stored outside the fridge at temperatures not above 30°C for up to 42 days (for 0.25, 0.5, 1. 1.7 and 2.4mg pens) or 28 days (for 7.2mg HD pens). The pen should be discarded if it has been exposed to light, exposed to temperatures above 30°C, or if it has been out of the fridge for more than 42/28 days.

Wegovy Injection Storage Guide

In Wegovy pens, the liquid is designed to be kept cool. If exposed to higher temperatures (over 30°C), the medication will become denatured. This means that the shape of the molecules that make up the medication will change, which means they cannot perform their original function. If Wegovy has become denatured, it should not be used, as it may not work properly and could make you feel unwell.

Similarly, keeping the medication too cold (under 2°C) may lead to the medication freezing, which can cause the medication to crystallize, degrade and break apart. Do not use Wegovy if it has been frozen.

Where possible, we recommend storing your Wegovy pens in the fridge between uses, reducing the risk of temperature spikes. This will help to keep the medication stable.

Some Wegovy pens may have specific room-temperature transport guidance. However, storage guidance can vary depending on the pen type. The Wegovy 7.2mg single-use pen should be stored in the fridge between 2°C and 8°C before use.

Storage guidance may vary depending on the type of Wegovy pen you have. The Wegovy 7.2mg single-use pen should be stored in the fridge between 2°C and 8°C before use. It can be stored outside the fridge at temperatures not above 30°C for up to 28 days. The pen should be discarded if it has been exposed to light, temperatures above 30°C, or if it has been out of the fridge for more than 28 days.

Storage requirements for Wegovy injections 

Before first use: refrigerate at 2-8°C. Wegovy pens can be transported at room temperature for up to 48 hours. Once received we recommend storing in the body of the fridge prior to first use.

After first use: store the pen at room temperature (under 30°C) or continue refrigerating (between 2-8°C).

Discard your Wegovy pen according to the instructions for your specific pen type. The Wegovy 7.2mg single-use pen should be discarded if it has been exposed to light, temperatures above 30°C, or if it has been out of the fridge for more than 28 days.

Never freeze your Wegovy pen, as this can damage the medication. Do not use a pen if it has been frozen – even if thawed.

Keep the cap on the pen to prevent exposure to light, as this can degrade the medication.

Temperature control and effectiveness

Can you leave Wegovy out of the fridge? 

Yes, once in use Wegovy can be stored at room temperature (below 30°C). However, once you receive your medication, store it in the body of the fridge prior to first use.

How long can Wegovy stay out of the fridge? 

Up to 48 hours during delivery and up to 6 weeks from first use as long as it is kept below (below 30°C). Wegovy HD 7.2mg pens can be kept out of the fridge for up to 4 weeks.

Does Wegovy work better if kept in the fridge? 

No. The medication will be equally effective in either storage condition, provided the pen has been stored correctly. 

If your Wegovy pen is stored in the fridge before first use, it can be used until the expiry date printed on the box. If kept at room temperature, or once in use, it must be used within 6 weeks. 

Does Wegovy injection sting when used straight from the fridge?

Some patients have reported that room temperature injections “sting” less than cold ones, though this is up to personal preference.

If you choose to remove your Wegovy pen from the fridge before administering, do not force de-chilling of the pen. Simply leave at room temperature between 15 to 30 minutes prior to use.

What happens if I let my Wegovy medication get too hot?

Wegovy that has been exposed to higher temperatures (over 30°C) may become denatured (broken down), rendering it not fit for use. Making it far less effective ,and increasing the risk of side effects. 

How do I know if I should not use my Wegovy pen?

Your Wegovy pen cannot be used if:

• The liquid is cloudy, no longer colourless, or contains any particles.  
• Has been exposed to heats above 30°C
• It has been frozen, even if it has since thawed out and looks clear

If you have any doubts or concerns please contact us for advice.

Why the 6-week rule?

Once in use, a Wegovy pen can be stored at room temperature for six weeks (4 weeks for 7.2mg). Even at room temperature, semaglutide can degrade over time. Beyond this time, the pen will be less effective. 

When the seal on the pen has been broken, there is a risk of bacterial contamination, which increases past the six week mark. This risk still applies even if Wegovy is kept in the fridge during use. 

This limit has been based on stability testing, which shows that semaglutide kept its efficacy and sterility within this window. After six weeks, both dropped, becoming less effective and increasing the chances of contamination.

Once the four/six weeks are up, you must discard your pen. Even if doses remain in the pen, the additional risks and degradation of the medication mean that these pens should not be used after this deadline.

Checking the your pen 

How can I tell if Wegovy has gone bad? 

Before each injection, visually check your pen by holding it up to the light.

Do not use your pen if the liquid:

• Has changed colour
• Has become cloudy
• Contains particles or small ice crystals

These all indicate contamination of the liquid.

Track your pen’s usage

When you first use a new pen, write the date it was opened on the box provided in your Wegovy packaging. This helps you track how long the pen has been in use.

Do not use your pen if:

• It has been stored incorrectly
• It has been exposed to heat
• It shows any visual changes to the liquid
• It has been open for more than 6 weeks
• The pen itself is cracked or damaged

If any of these apply, contact us for advice on next steps. Broken pens can cause injury or lead to further contamination.

If you are unsure or have any doubts about the safety of your pen, do not use it and contact us to advise on the next steps. 

Travelling with Wegovy FlexiTouch pen (injections) 

Travelling on a plane with Wegovy Pen

Do not put your Wegovy pen in checked baggage. The extreme temperatures in a plane’s cargo hold can freeze or overheat your medication. Keep your pens in your carry-on bag or hand luggage.

You may require a prescription at airport security. For this get in touch and we will email a PDF of your prescription – that you can print out and take with you. 

For shorter flights, a cool bag may not be required. For flights over 6 hours, we recommend an insulated travel case to keep your medication cool. If using ice packs, ensure they are not directly touching the medication, and take care to avoid freezing the liquid in your pens.

Keep your medication in the original packaging, with the prescription label visible. You will need to declare your medication at airport checkpoints.

For extended travel, make sure to keep track of your storage limits (6 weeks at room temperature from first use).

Can I skip a week of Wegovy for holidays?

Skipping a dose is not recommended without medical advice. This can lead to lowered effectiveness, increased risk of side effects and can make it harder to get back into the routine of using the medication.

Wegovy pens are travel-friendly, meaning you should not need to skip a dose. If you must, speak to your prescriber before you do so for advice.

Injection timing and storage 

What is the best time of day to inject Wegovy? Any time of day is suitable, so long as you consistently use the same time each week. Most choose the morning or evening for their injection, based on their routine. Find a time that works for you and stick to it.

If you have the time, allowing your pen to reach room temperature – from the fridge for around 15 to 30 minutes – can reduce the sting some experience from the injections.

Wegovy Pill Storage Guide 

Wegovy pills have different storage requirements than injections. Store at room temperature, in the original packaging. Do not refrigerate this medication.

Keep in a cool, dry place. Moisture can damage the integrity of the pill, making it unsuitable for use.

Wegovy pills use an absorption enhancer called SNAC. This ensures your body can absorb the active ingredient properly. If the pill is crushed or damaged, the amount of SNAC in the pill can be altered, which means your body won’t absorb the right amount of semaglutide.

Storage requirements for Wegovy pills

Do you need to put Wegovy Pills in the fridge?

No – never refrigerate Wegovy pills. This can damage the absorption enhancer, making them far less effective. 

Store at room temperature in the original bottle, away from any sources of moisture. Your bottle may have a desiccant packet included – please keep it in the bottle to stop the pills from getting moist.

The patient information for Rybelsus (which uses the same formulation) has more info about how to best store oral semaglutide.

Why pill storage differs from injections 

While both medications contain semaglutide, their delivery systems make them quite different. Liquid semaglutide (injection)  requires refrigeration to maintain stability. 

Wegovy tablets are more stable at room temperature, but the SNAC absorption enhancer is extremely moisture-sensitive. Humid conditions can make SNAC break down, which means your body will not be able to absorb the same amount of medication, leading to the tablets being much less effective. This includes refrigeration, which creates condensation.

Checking pill quality 

Before taking your dose, inspect your Wegovy pills carefully. Your tablets should be:

• White or off-white in colour
• Intact, firm and dry
• Stored in a dry, undamaged bottle with the desiccant packet inside

Do not use your pills if:

• The tablets are discoloured, crumbling, soft, sticky or smell different
• The bottle has visible condensation or moisture inside
• The desiccant packet is missing
• The pills are past the expiration date on the bottle

If you notice any issues with your Wegovy pills, contact us and we will advise on next steps.

Travelling with Wegovy pills 

Travelling with Wegovy pills can be much simpler than injections.

Make sure to keep your medication in the original bottle, with the label visible. You may need to declare these tablets at the airport when you check in.

As they are stored at room temperature, simply keep them in your carry-on luggage (to prevent them from temperature extremes in the cargo hold).

If you are travelling somewhere humid, ensure the bottle is kept tightly sealed except when taking a dose.

When going through airport security you may be asked to provide a copy of your prescription. Contact us and we will email you a PDF of your prescription that you can print and take with you. 

Storage Comparison: Injection vs Pill 

	Wegovy Injection	Wegovy Pill
Storage Temperature	2–8°C before use, under 30°C after	Room temperature
Time Limit (after opening)	6 weeks	Until expiry date
Main Risk Factors	Heat and freezing	Moisture
Light Protection	Yes (keep the cap on)	Yes (store in original bottle)
Ease for Travel	Cooling case for longer trips	Keep in original bottle

When should I see a doctor? 

For both the pill and injection, there are some specific side effects that require medical attention.

If you experience any of the following, stop taking the medication and seek immediate medical attention;

• Difficulty breathing
• Swelling of the mouth, lips or tongue
• Dizziness and weakness
• Increased heart rate

These are signs of an allergic reaction.

Seek urgent medical attention if you have severe and persistent stomach pain that may spread to your back, as this could be a sign of an inflamed pancreas.

If you notice any change in your vision, please seek urgent medical attention. 

If you experience any of these effects, call NHS 111 or 999 if your symptoms are severe.

Key takeaways 

• Wegovy pills and injections have different storage requirements, despite using the same active ingredient.
• Wegovy injections are much more susceptible to extreme temperatures. They should not be frozen, or stored above 30°C.
• Wegovy pills are much less vulnerable to temperatures, but do need to be kept dry to prevent them from becoming unusable. Store in the original bottle in order to protect from light and moisture.
• Travelling with these medications is possible, though injections require a cool pack for travelling, while pills require no special protections.

References

Wegovy Patient Information Leaflet, Novo Nordisk
Wegovy.com, Novo Nordisk
Wegovy Frequently Asked Questions, NovoMedLink
Wegovy injection label, storage and handling, FDA
Patient information on semaglutide storage and handling, NHS

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