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Freezing Enbrel: What You Need to Know If you're wondering whether Enbrel can be frozen, the answer is that it's not recommended. Enbret (etanercept) is a biologic medication administered via injection to treat various autoimmune diseases, including rheumatoid arthritis, psoriasis, and psoriatic arthritis [1]. Stability and Freezing Concerns Etanercept, the active ingredient in Enbrel, is a protein-based biologic that can be affected by temperature changes. Freezing Enbrel can potentially affect its stability and potency, which might impact its efficacy when used [2]. The manufacturer, Amgen, and Pfizer (the company distributing Enbrel in some territories), emphasize that Enbrel should be stored in the refrigerator at 36°F to 46°F (2°C to 8°C) and protected from light and moisture [3]. Storage and Handling Guidelines To maintain the integrity of Enbrel, it's crucial to follow the manufacturer's storage and handling guidelines. These include: - Store Enbrel in the refrigerator, not in a freezer. - Use a carton or container to shield the medication from light. - Avoid exposing Enbrel to extreme temperatures, such as direct sunlight or temperatures above 86°F (30°C). - Don't mix Enbrel with other injectable medications or diluents. Alternatives and Precautions If you're experiencing issues with refrigerated storage, consider consulting your healthcare provider or the manufacturer for alternative storage options. However, freezing Enbrel is not a viable solution. Patent and Exclusivity Timeline It's worth noting that the patent for Enbrel (etanercept) has expired, and biosimilars are available in various regions. Check with your local authorities or consult a healthcare professional to determine the most suitable option for your treatment plan [4]. Sources: [1] National Institutes of Health. (n.d.). Etanercept (Etanercept Injection). Retrieved from https://dailymed.nlm.nih.gov/dailymed/search.cfm?q=etanercept [2] Pfizer. (n.d.). Enbrel (etanercept). Retrieved from https://www.enbrel.com [3] Amgen. (n.d.). Enbrel Prescribing Information. Retrieved from https://www.enbrel.com/assets/downloads/brochures/PrescribingInfo.pdf [4] DrugPatentWatch.com. (2024). Etanercept. Retrieved from https://www.drugpatentwatch.com/ep/etanercept
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