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When using this medication, some common side effects include pain, swelling, or redness at the injection site. These symptoms are usually mild and can be managed by injecting the medication at bedtime and using pain relievers like acetaminophen or ibuprofen. Many patients experience flu-like symptoms such as headache, tiredness, fever, chills, and muscle aches, especially at the start of the treatment. These generally subside within a day after injection and tend to diminish over time.

While most users do not encounter severe issues, it's important to be aware of serious side effects. Contact a healthcare professional immediately if you experience mental or mood changes, such as depression or thoughts of suicide, temperature sensitivity, blue fingers or toes, unusual bleeding or bruising, or changes in the skin color at the injection site. Joint pain, signs of kidney or liver problems, and symptoms of heart failure like breathlessness or sudden weight gain also warrant prompt medical attention.

This medication can weaken your immune system, increasing the risk of serious infections. Report any persistent sore throat, fever, or cough to your healthcare provider. Although rare, severe allergic reactions can occur. Seek emergency help if you experience a rash, severe dizziness, or difficulty breathing. Always inform your doctor about any other side effects you might notice during your treatment.