How Long is Tresiba Pen Good For After Opening: Optimal Storage and Shelf Life

Have you ever found yourself wondering how long a Tresiba pen lasts after opening? It’s a common question for people who rely on insulin shots to keep their blood sugar levels in check. Well, the good news is that Tresiba pens are designed to stay fresh for quite a while after opening. In fact, you may be surprised at just how long they can last.

As someone who has struggled with diabetes for years, I completely understand the importance of having reliable and effective insulin at your disposal. When it comes to Tresiba pens, many people are curious about their longevity. So, how long is Tresiba pen good for after opening? The answer may pleasantly surprise you. Tresiba pens can actually last for up to 8 weeks after their initial use. That’s a pretty impressive shelf life for an insulin pen.

If you’re like me, you’re probably always on the lookout for ways to make managing your diabetes a little easier. Knowing that your Tresiba pens can last for such a long time after opening can give you some much-needed peace of mind. Of course, it’s always important to follow proper storage and handling protocols when it comes to insulin. But now that you know the answer to one of diabetes’ most common questions, you can feel even more prepared to take charge of your health.

What is Tresiba Pen?

Tresiba pen is a type of insulin pen used for the management of diabetes. It is a long-acting basal insulin that is used to regulate blood sugar levels in people living with both type 1 and type 2 diabetes. The pen is pre-filled with insulin and is designed for subcutaneous injection, which means it is injected under the skin. Tresiba Pen is designed for people who require insulin on a long-term basis, and it is available by prescription only.

How is Tresiba Pen stored?

Proper storage of Tresiba Pen is essential in maintaining the efficacy of the medication. Here are some guidelines to follow when storing your Tresiba Pen:

  • Keep the pen in the original carton when not in use to protect it from light
  • Store the pen in the refrigerator at a temperature between 36°F to 46°F (2°C to 8°C)
  • Do not freeze the pen
  • Do not expose the pen to heat or direct sunlight
  • Do not use the pen if it has been frozen or exposed to high temperatures

It is important to note that once the Tresiba Pen has been opened, it can be stored at room temperature for up to 8 weeks. If you need to use the pen beyond the 8-week period, you must discard the pen and use a new one.

To ensure that you are storing your Tresiba Pen correctly, it may be helpful to keep a record of when you opened and started using the pen. This can help you keep track of when the 8-week period ends and when it is time to discard the pen.

Storage Unopened Opened (in-use)
Refrigerated Until expiration date Up to 8 weeks
Room temperature Not recommended Up to 8 weeks

By following these storage guidelines, you can help ensure that your Tresiba Pen remains effective and safe for use. If you have any questions or concerns about proper storage of your Tresiba Pen, be sure to speak with your healthcare provider or pharmacist.

What does it mean for Tresiba Pen to “expire”?

When it comes to Tresiba Pen, expiration means the amount of time the medication can be safely used after opening. The Tresiba Pen contains a specific amount of insulin, and after the expiration date, the medication may start to degrade, and its potency can be affected. It is crucial to follow the expiration date on the packaging to ensure the safe and effective use of Tresiba Pen.

Factors that Affect the Expiration of Tresiba Pen

  • Storage temperature:
  • Tresiba Pen should be stored under refrigerated conditions at 2°C to 8°C. If the insulin is exposed to warmer temperatures, it can degrade faster, and the medication may expire sooner.

  • Number of uses:
  • The number of times the pen has been used can also affect the expiration date. The more times the pen has been used, the higher the risk of exposure to bacteria that may cause contamination.

  • Handling:
  • Proper handling and storage of Tresiba Pen are essential in ensuring the medication’s effectiveness. Avoid dropping or shaking the pen, as it can cause damage that may affect the medication’s potency.

Effects of Using Expired Tresiba Pen

Using expired Tresiba Pen can have serious consequences on the patient’s health. The medication may not work as effectively, and it can also result in an inadequate amount of insulin being delivered to the body, resulting in high blood sugar levels. On the other hand, using Tresiba Pen that has expired can also cause the medication to be too potent, leading to a sudden drop in blood sugar levels, also known as hypoglycemia. This can be extremely dangerous, which is why it is important to always check the expiration date on the packaging to ensure that the medication is still safe to use.

Recommended Expiration Date of Tresiba Pen After Opening

Tresiba Pen is good for use for up to 8 weeks after opening when stored under refrigerated conditions. The expiration date can usually be found on the packaging label or on the insulin pen itself. It is important to always check the expiration date before using Tresiba Pen and to dispose of any medication that has exceeded its expiration date. Proper disposal of unused medication is also important in preventing accidental ingestion by children or pets.

Storage Expiration Date
Under refrigeration at 2°C to 8°C (36°F to 46°F) 8 weeks after first use
Room temperature 30°C (86°F) 4 weeks after first use

Overall, following the expiration date of Tresiba Pen is critical in ensuring the patient’s safety and maintaining the medication’s effectiveness. Patients should always consult with their healthcare professionals regarding any concerns about using expired medication and the appropriate disposal of unused medication.

How long is Tresiba Pen good for before opening?

Tresiba Pen is a type of insulin used to control high blood sugar in people with diabetes. Before opening, Tresiba Pen can be stored at room temperature, between 36°F to 86°F (2°C to 30°C), for up to 14 days from the date of manufacture. It is important to check the expiration date on the pack of the Tresiba Pen before use. This date indicates the last day the Tresiba Pen is safe and effective to use.

  • Store the Tresiba Pen away from direct heat and sunlight.
  • Do not refrigerate the Tresiba Pen before opening as it can damage the pen.
  • If the Tresiba Pen has been exposed to temperatures outside the recommended range, do not use it.

It is essential to follow the storage instructions provided by the manufacturer to ensure the Tresiba Pen maintains its effectiveness. Improper storage of the Tresiba Pen can lead to loss of potency and may result in high blood sugar levels.

Once the Tresiba Pen is opened, the duration of use depends on the type of Tresiba Pen:

Type of Tresiba Pen Duration of Use
Tresiba FlexTouch Pen (100 units/mL) 28 days
Tresiba Penfill Cartridge (100 units/mL) 6 weeks

It is important to discard the Tresiba Pen after the recommended duration of use or if the solution appears discolored or cloudy.

What are the ingredients in Tresiba Pen?

Tresiba Pen is an injectable insulin prescribed to adult patients with type 1 and 2 diabetes mellitus. It contains insulin degludec, a long-acting insulin that can last up to 42 hours in the body. Let’s take a closer look at the components of Tresiba Pen:

  • Insulin Degludec: It is the active ingredient in Tresiba Pen. It works by lowering blood glucose levels by facilitating the uptake of glucose in cells and inhibiting liver glucose production.
  • Zinc: Zinc is a trace mineral present in insulin to stabilize the crystal structure of insulin hexamers, leading to slow absorption of insulin in the bloodstream and prolonged activity.
  • Metacresol: Metacresol is used as a preservative in Tresiba Pen to prevent the growth of bacteria in insulin solutions and maintain its efficacy over time.
  • Hydrochloric Acid and Sodium Hydroxide: These are added to adjust the pH of Tresiba Pen to a slightly acidic range (3.5-5.5) optimal for insulin stability.
  • Glycerol: Glycerol is a sugar substitute added to Tresiba Pen to increase the viscosity of insulin, enhance its shelf life, and improve the ease of injection.


Tresiba Pen is a reliable and effective insulin therapy for patients with diabetes. It offers a long-acting and consistent blood glucose lowering effect that can last up to 42 hours. The ingredients in Tresiba Pen work in harmony to minimize the risk of hypoglycemia and optimize diabetes management.

Ingredients Concentration per mL
Insulin Degludec 100 units
Zinc 0.0405 mg
Metacresol 1.50 mg
Hydrochloric Acid 0.0405 mg
Sodium Hydroxide 0.120 mg
Glycerol 30.00 mg

Therefore, Tresiba Pen is a well-tolerated medication for diabetic patients with minimal side effects. The Tresiba Pen remains stable for up to 8 weeks once the seal is broken, making it an excellent option for long-term diabetes management.

Can Tresiba Pen be refrigerated?

Tresiba pen is a long-acting insulin medication used to control blood sugar levels in patients with diabetes. Once the pen is opened, it needs to be stored carefully to maintain its efficacy and potency until the final dose is administered. One of the popular queries regarding the storage of the tresiba pen is whether it can be refrigerated or not. Let’s explore this question in-depth.

  • Tresiba Pen should not be frozen.
  • Tresiba Pen should not be stored with the needle attached as it can cause the insulin to leak.
  • Tresiba Pen should be stored in the original carton to protect it from light.

Now, talking about the refrigeration of tresiba pens, once opened, it is recommended to store it at room temperature, not exceeding 86°F (30°C), away from heat and direct light. However, if you plan to use the medication later, it is acceptable to store the tresiba pen in the refrigerator at 36°F to 46°F (2°C to 8°C) until the expiration date.

It is important to note that once a tresiba pen is kept in the refrigerator, it should not be removed and stored back at room temperature, as it can affect the medication’s potency. Additionally, once a tresiba pen has been refrigerated, it needs to be brought to room temperature before use by leaving it at room temperature for approximately 30 minutes.

Storage Condition Before the first use After the first use
Room Temperature (at or below 86°F or 30°C) 28 days 42 days
Refrigerated (36°F to 46°F or 2°C to 8°C) Until expiration date Until expiration date

In conclusion, it is not mandatory to refrigerate the tresiba pen when opened; it can be stored at room temperature and can remain potent for up to 28 days. However, if you plan on using it later, you can store it in the refrigerator, but you need to make sure that it is at room temperature before the administration. Careful storage is essential to ensure the medication’s potency and efficacy until the final dose is administered.

How often should the Tresiba Pen be used?

When it comes to using the Tresiba Pen, it is important to follow the instructions provided by the healthcare provider. Generally, the Tresiba Pen should be used once a day and at the same time every day. This helps in maintaining a steady blood sugar level throughout the day and avoiding any fluctuations.

  • The Tresiba Pen is suitable for insulin-dependent adults with type 1 diabetes and type 2 diabetes.
  • The recommended starting dose for Tresiba is 10 units once daily, but the dose may be adjusted in 2 unit increments based on individual patient needs.
  • For patients using Tresiba with mealtime insulin, the dose of mealtime insulin may need to be adjusted to reduce the risk of hypoglycemia.

The healthcare provider may also recommend splitting the dose of Tresiba into two injections per day, which is known as a twice-daily dosing regimen. This may be recommended for patients with type 2 diabetes who require a higher dose of insulin.

It’s important to note that Tresiba must be used every day to effectively control blood sugar levels. Skipping the dose of Tresiba can cause hyperglycemia or high blood sugar levels. Thus, it is important to develop a routine around using the Tresiba Pen every day to avoid any missed doses.

Points to Remember
Use Tresiba Pen once a day at the same time every day.
Starting dose for Tresiba is usually 10 units once daily.
Tresiba can be used for both type 1 and type 2 diabetes patients.
Sometimes, the healthcare provider may recommend splitting the dose of Tresiba into two injections per day.

In summary, the Tresiba Pen should be used daily at the same time every day to maintain a steady blood sugar level. The healthcare provider may adjust the dose based on the individual patient needs. It is important to follow the instructions provided by the healthcare provider to avoid any missed doses and to keep blood sugar levels under control.

What are the possible side effects of using Tresiba Pen?

Tresiba Pen is a long-acting insulin used to manage blood sugar levels in people with diabetes. While Tresiba Pen is generally safe and effective when used as directed, there are some potential side effects that users should be aware of. Here are some of the most common side effects associated with using Tresiba Pen:

  • Hypoglycemia: Since Tresiba Pen is designed to lower blood sugar levels, it can sometimes cause hypoglycemia or low blood sugar. Symptoms of hypoglycemia include sweating, shaking, confusion, and dizziness. It’s important to monitor blood sugar levels regularly and follow the dosing instructions carefully to minimize the risk of hypoglycemia.
  • Injection site reactions: Some people may experience redness, swelling, or itching at the injection site after using Tresiba Pen. These reactions tend to be mild and go away on their own after a few days.
  • Allergic reactions: In rare cases, Tresiba Pen can cause an allergic reaction. Symptoms of an allergic reaction include difficulty breathing, swelling of the face or throat, and hives. Anyone who experiences these symptoms after using Tresiba Pen should seek immediate medical attention.

In addition to these potential side effects, there are some other things to keep in mind when using Tresiba Pen. For example, it’s important to avoid driving or operating heavy machinery if you experience hypoglycemia or other side effects that could impair your judgment or coordination. It’s also important to let your doctor know if you experience any new or unusual symptoms so they can adjust your treatment plan if necessary.

Overall, Tresiba Pen is a safe and effective treatment option for people with diabetes. By following the dosing instructions carefully and monitoring blood sugar levels regularly, users can minimize the risk of side effects and enjoy the benefits of better blood sugar control.

How can one tell if their Tresiba Pen has gone bad?

As with any medication, it’s important to check the expiration date before using Tresiba. However, even if the medication is within its expiration date, it may still go bad and become unsafe to use.

  • Visual inspection: Check for any visible signs of damage or contamination. If the Tresiba Pen appears discolored, cloudy, has particles in it, or has a cracked cartridge or needle, it is no longer safe to use.
  • Odor: Tresiba should not have any noticeable odor. If you detect an unusual or unpleasant smell, the medication should not be used.
  • Effectiveness: If you notice a change in your blood sugar levels or experience any unusual symptoms after using Tresiba, it may have gone bad. Discuss any concerns with your healthcare provider.

If there is any doubt about the safety of Tresiba, it is best to dispose of it properly and acquire a new pen.

Frequently asked questions about Tresiba expiration

Here are some common questions about Tresiba expiration:

  • How long is Tresiba good for after opening?
  • How long is Tresiba good for in the fridge?
  • Can Tresiba go bad if it’s not refrigerated?
Question Answer
How long is Tresiba good for after opening? Tresiba is good for up to 8 weeks after the first use, as long as it is stored in the refrigerator.
How long is Tresiba good for in the fridge? Tresiba is good for up to 8 weeks after the first use, as long as it is stored in the refrigerator.
Can Tresiba go bad if it’s not refrigerated? Yes, Tresiba should be stored in the refrigerator to maintain its stability and effectiveness. If it is left at room temperature for an extended period of time, it may no longer be safe to use.

Properly disposing of Tresiba

It is important to dispose of Tresiba pens properly to avoid contamination or accidental use. Here’s how to dispose of a used or expired Tresiba pen:

  • Remove the needle and throw it away in a sharps container. Do not recap the needle or throw it away in the trash or recycling bin.
  • Remove the pen cap and place the entire pen in a household trash can. Do not recycle the pen.

Following these simple instructions will ensure that Tresiba is disposed of safely and responsibly.

What is the price of Tresiba Pen?

Tresiba Pen is a long-acting insulin medication used to control high blood sugar in adults with diabetes. The price of Tresiba Pen can vary depending on several factors such as location, insurance coverage, and dosage required. In general, the cost can range from $200 to $300 per pen without insurance. This can be quite expensive for those who do not have insurance coverage or who need to use multiple pens of Tresiba every month.

  • One way to help manage the cost of Tresiba Pen is to check with your insurance provider to see if it is covered under your plan. Some insurance plans provide coverage for insulin medications, while others may require a higher co-pay or deductible.
  • Another option is to look for prescription discount programs that may offer savings on Tresiba Pen. Some programs offer discounts up to 75% on prescription medications, including insulin.
  • Price comparison websites and apps can also help you find the best deal on Tresiba Pen. These tools allow you to compare prices at different pharmacies in your area, so you can find the most affordable option.

It is important to note that the expiration date of Tresiba Pen can also affect its price. Tresiba Pen typically has a shelf life of 4-6 weeks after opening, depending on the storage conditions. This means that if you do not use all the insulin within that period, you may need to dispose of the pen and purchase a new one, which can add to the overall cost.

Ultimately, the cost of Tresiba Pen can vary depending on several factors, but there are ways to manage the cost and make it more affordable. It is important to work with your healthcare provider and insurance provider to find the best solution for your diabetes management needs.

Factors Affecting Tresiba Pen Price Price Range
Insurance Coverage $0-$100 (with coverage)
Prescription Discount Programs $100-$200 (with discount)
Location / Pharmacy $200-$300 (retail price)

Table: Estimated price range of Tresiba Pen based on various factors.


Well there you have it, folks! We hope we’ve answered your question: how long is the Tresiba pen good for after opening? Remember, the pen should be good for 8 weeks after opening, as long as it’s been stored properly. Of course, always double check with your doctor or pharmacist if you have any concerns. Thanks for reading and visiting our blog! We hope to see you again soon for more helpful tips and information. Take care!