Does Omnitrope Need to Be Refrigerated?

Quick Answer: Yes, Omnitrope must be refrigerated between 36°F and 46°F (2°C to 8°C) to maintain its effectiveness. If left at room temperature too long, it can degrade and lose potency, making treatment less effective or unsafe. Always store it properly to ensure safety and efficacy.

Omnitrope, a synthetic human growth hormone (somatropin) made by Sandoz Biopharmaceuticals, is an effective treatment for many children and adults with growth hormone deficiencies.

But the effectiveness of this injectable HGH extends beyond its bioengineered formulation. One of the keys to ensuring its efficacy is its storage conditions, particularly refrigeration.

So, here's an in-depth look at the storage requirements for your Omnitrope pens and vials. Why must they be kept refrigerated? What happens when they're left at room temperature?

Understanding these storage instructions is essential for anyone handling Omnitrope. It underscores the interplay between optimal storage conditions and therapeutic effectiveness.

What is Omnitrope?

Omnitrope is a synthetic version of the human growth hormone (HGH) used to treat various conditions in both children and adults. Produced by Sandoz Biopharmaceuticals through recombinant DNA technology, Omnitrope is indicated in conditions like:

The active ingredient in Omnitrope is somatropin, like in Humatrope, Norditropin, Nutropin, and other HGH treatments. Naturally produced by the pituitary gland, HGH supports childhood growth and keeps tissues and organs functioning throughout life. When the body doesn't make enough, Omnitrope steps in as a replacement.

HGH therapy helps by:

Stimulating tissue growth
Boosting protein production
Breaking down fat to fuel development

Omnitrope comes as either a vial (a powder mixed with solvent) or a prefilled injector pen with easy-to-use cartridges.

As a prescription medication, it should only be used under medical guidance. Side effects can include injection site reactions, headaches, swelling, joint or muscle pain, and sometimes carpal tunnel syndrome. Regular monitoring and dosage adjustments are essential for safe and effective treatment.

Does Omnitrope Need to Be Refrigerated?

Yes, Omnitrope needs to be refrigerated. Somatropin, its active ingredient, is a very sensitive biologic that quickly deteriorates if not properly stored. Therefore, storing your vials or pens of Omnitrope correctly is essential to maintain its efficacy and safety. Refrigeration is the only way to do so.

Why does Omnitrope need to be refrigerated?

Omnitrope, like other forms of synthetic human growth hormone, is a protein-based medication. Proteins are complex molecules sensitive to conditions like:

Temperature
Light
pH levels

Keeping somatropin at a lower temperature slows down the degradation process, helping preserve the medication's structure, function, effectiveness, safety. This ensures the medicine maintains its quality throughout its shelf-life.

If Omnitrope is left at room temperature for extended periods, it may degrade more rapidly. This degradation can lead to a loss of potency, meaning it might not work as effectively as expected.

In some cases, if the protein degrades significantly, it could form aggregates - clumps of molecules that:

Might provoke an immune response when injected (though rare)
Could cause side effects
May reduce or eliminate therapeutic effectiveness

Therefore, the following storage instructions must be followed to ensure your HGH injections remain potent.

Storage instructions

According to Sandoz Biopharmaceuticals, the manufacturer of Omnitrope, the injection vials, pens, and cartridges should be stored in the refrigerator between 36°F to 46°F (2°C to 8°C) both before and after reconstitution (mixing). Additionally, the manufacturer warns that Omnitrope should also be protected from light (kept in its original carton box when possible) and must not be frozen.

How long can it stay out of the fridge?

It is recommended to refrigerate Omnitrope as soon as possible after each injection to maintain its optimal effectiveness. Somatropin should not be kept out of the fridge for more than one hour per day.

How long is Omnitrope good for?

Before use and when adequately kept refrigerated, Omnitrope cartridges and vials are good until the expiration date labeled on the container.

Once opened or prepared, follow these specific timelines:

Injector pens: After first use, the cartridge should stay in the pen and be refrigerated. Use within 28 days.
Vials: After reconstitution (mixing), keep the vial refrigerated and use within 3 weeks.

Proper storage and timely use are essential to ensure the medication remains safe and effective.

Travel Coolers for Omnitrope

When traveling or transporting Omnitrope, it's important to keep it refrigerated within the required temperature range.

Given somatropin's extreme instability at room temperature, you'll need a performant and reliable portable cooler. Avoid using insulated lunch bags with ice packs - the temperature fluctuates too much, which can damage your medication.

Most people who rely on refrigerated medications like Omnitrope choose 4AllFamily's portable fridges for travel.

These medical-grade coolers are designed to maintain a temperature between 36°F to 46°F (2°C to 8°C) for extended periods - from several hours to several days, depending on the model.

✅ Our most advanced models include:

Built-in thermostat
Anti-freeze safety
Temperature display

🧊 Cooling options include:

Electric-powered units (USB car charger, household outlet, portable solar panel, travel power bank)
Biogel freeze pack technology
Hybrid coolers that combine both methods

See all our coolers for Omnitrope here! Do not hesitate to contact our support team for further guidance.

Omnitrope vs. Humatrope vs. Genotropin vs. Norditropin vs. Nutropin and Other HGH

Omnitrope isn't the only brand of somatropin. Many HGH injections are made with somatropin as the main active drug, including Humatrope, Genotropin, Norditropin, Nutropin, Saizen, Zomacton, Tev-Tropin, and others. All these medications are forms of somatropin used to treat growth hormone deficiencies and other conditions. However, they differ in formulation, method of administration, excipients, solvents, dosage, strength, availability, pricing, injection devices, indications, FDA approvals, Despite being different brands of the same active drug, they are not interchangeable. Their respective specificities can impact patient preference, ease of use, as well as the success of the therapy. Always consult a healthcare professional for advice on which medication would be most suitable for you. They will consider several factors, like your condition, overall health, potential side effects, lifestyle, and cost.

📌 Key takeaways:

❄️ Omnitrope must be refrigerated (36°F to 46°F) to maintain its growth hormone potency and effectiveness.
⚠️ Exposure to room temperature can degrade somatropin, reducing its therapeutic benefits and safety.
🧴 Available in vials and injector pens; each has specific storage and usage timelines after opening.
🚫 Never freeze Omnitrope or expose it to light-store it in its original packaging in the fridge.
🧳 For travel, use portable medical-grade coolers to keep Omnitrope within the safe temperature range.

💬 We'd Love to Hear From You!

Have questions about storing Omnitrope or traveling with HGH medication? Or maybe you have tips and experiences to share? Drop us a comment or reach out to our support team - your insights help others and make our community stronger!

📆 Article Update History:

✅ Updated: April 22, 2025

Originally Published: June 26, 2023

June 26, 2023

Older Post Back to Proper Storage and Handling of Growth Hormone Injections Newer Post

Comments

4AllFamily Customer Care Team said:

Dear Franceen,
Thank you for your questions. I will try to answer them as best as I can:
1. Omnitrope is very sensitive to temperature and can only stay unrefrigerated for one hour per day approx. It’s hard to say if it’s been affected by the shipping conditions, because there’s no data about what was the exact temperature inside the package. However, it seems like the refrigeration conditions were not respected, so it could have affected your injections efficacy.
2. When Omnitrope is left unrefrigerated, its starts to degrade and lose potency. However, it should not cause painful side effects. I would recommend asking for your doctor’s advice here.
3. Omnitrope´s manufacturer storage instructions are pretty clear on the fact that it must be refrigerated at all time possible. I would suggest asking for your pharmacist’s advice and contacting the manufacturer to complain about the shipping conditions and request a new batch.
I hope everything goes well,
Warm regards,
4AllFamily

4AllFamily Customer Care Team said:

Franceen Hill said:

Three Questions:
(1)My Omnitrope powder vials were sent from Utah to Los Angeles via an overnight 27-hour UPS trip – the ice pack arrived more than 7/8% melted. The package arrived “slightly cool” . Should I expect less potency?
(2)My current nightly injections bring on new and intense body & joint pain that I have never experienced before with many year’s Omnitrope use – could this pain be a side effect brought on by non refrigeration?
(3) Your site seems to be clear on the importance of Omnitrope refrigeration – should I throw this batch out and order new Omnitrope with more prompt delivery specifications?
Thank you.

The information presented in this article and its comment section is for informational purposes only and is not intended as a replacement for professional medical advice. Always consult with a qualified healthcare provider for any medical concerns or questions you may have.

OUR PICKS