Quick Answer: Forsteo must be stored in the refrigerator at all times between 2°C and 8°C. After each injection, immediately return your Forsteo pen to the fridge. Once opened, a Forsteo pen can be used for up to 28 days, after which it should be disposed of—even if there is medicine remaining inside.
If you have been prescribed Forsteo as part of your osteoporosis treatment, it’s essential to understand its specific storage requirements. Teriparatide, the active ingredient in Forsteo, is a delicate medication that must be refrigerated. Storing your injection pens incorrectly could compromise your treatment and ultimately your health.
Here’s a guide to Forsteo storage instructions and some helpful tips to keep your medication safe!
Related article: The Best Travel Coolers to Keep Forsteo Cool While Travelling!
What is Forsteo?
Forsteo is one of the UK brand name of Teriparatide, ts active ingredient. It’s a synthetic version of parathyroid hormone (PTH), which the body naturally produces to regulate calcium levels in the blood. Among its benefits, Forsteo stimulates new bone growth and improves bone density.
Forsteo is a prescription medication approved in the UK for treating certain types of osteoporosis, particularly when patients are at high risk of fractures or cannot use other osteoporosis treatments. It’s mainly prescribed for:
- Postmenopausal women with osteoporosis
- Men with hypogonadal osteoporosis
- Men and women with osteoporosis caused by glucocorticoid medications like prednisone
By increasing bone mass and strength, Forsteo helps reduce the likelihood of fractures.
In the UK, Forsteo is available in prefilled pen injectors, making it convenient for patients to self-administer at home. Each Forsteo pen contains 28 doses, with the standard dosage being 20 micrograms daily (your doctor may adjust this based on your specific needs).
Forsteo Refrigeration and Storage
Teriparatide, the active ingredient in Forsteo, is a biological product and is therefore sensitive to temperature changes. It must be kept refrigerated at all times to preserve its effectiveness. Let’s review the official storage guidelines to ensure you’re storing your medication correctly.
According to Eli Lilly and Company, the manufacturer of Forsteo, the medication must be stored in the refrigerator at all times between 2°C and 8°C.
After each injection, immediately return your Forsteo pen to the fridge. The pen should not be frozen or exposed to freezing temperatures, as this can destroy the medication. If the pen freezes, discard it and use a new one.
Once opened, a Forsteo pen can be used for up to 28 days, after which it should be disposed of—even if there is medicine remaining inside. Over time, the active ingredient starts to degrade, making the medication less effective.
FAQ about Forsteo Storage Temperature
Managing a medication like Forsteo can seem daunting, but proper storage is key to ensuring your treatment remains effective. Here are answers to some frequently asked questions to help you manage your medication confidently.
How to best store Forsteo in the Fridge?
Forsteo must always be kept in the fridge, regardless of whether the pen is opened or not. The ideal refrigerator temperature is between 2°C and 8°C, with minimal fluctuations. To maintain a stable temperature:
- Do not overcrowd your fridge, as this can block air circulation.
- Avoid opening the fridge door frequently or leaving it open for extended periods.
- Store your Forsteo pen in the middle of the fridge, away from the sides and door where temperatures vary the most.
- Keep the pen away from the freezer compartment to avoid accidental freezing.
- Regularly check your refrigerator’s temperature.
What happens if Forsteo is not refrigerated?
If Forsteo is left out of the fridge, the active ingredient can deteriorate, reducing the medication’s effectiveness. While it may not cause harm, using a pen that has been unrefrigerated for too long can result in an inadequate treatment dose.
How long can Forsteo be out of the refrigerator?
Forsteo should never stay unrefrigerated. According to the manufacturer, the injection pen should be stored in the refrigerator at all times and be returned to the fridge "immediately after the injection".
When travelling or away from home. you must carry your Forsteo pens in a medical refrigerated travel case, like the ones from 4AllFamily UK:
How can you tell if your Forsteo pen has gone bad?
Before each use, inspect the medication. Forsteo is a clear, water-like solution. If you notice any cloudiness, particles, or discolouration, do not use it. Dispose of the pen and consult your pharmacist or doctor for advice.
Can you use expired Forsteo?
No, you should never use expired Forsteo. Always check the expiry date on the pen and ensure it has been stored refrigerated. Remember, even a pen that hasn’t reached its expiration date must be discarded after 28 days of use.
We'd Love to Hear Your Thoughts!
Are you using Forsteo as part of your osteoporosis treatment? If you have any questions about storage or handling, feel free to leave a comment below, and our team will gladly assist!
