Main content Interferon Alfa

    Interferon Alfa



    Side Effects

    Side effects of treatment with interferon are common and may include:

    • Flu-like symptoms, such as headaches, muscle aches, fever, chills, and fatigue. You may be able to feel better if you take the drug at bedtime along with a pain reliever such as acetaminophen (for example, Tylenol).
    • Loss of appetite and weight loss.
    • Nausea and vomiting.
    • Irritability.
    • Insomnia.
    • Depression.
    • Low blood counts, which may increase your risk of infection or bleeding.

    Rare side effects include:

    • Confusion.
    • Excessive amounts of protein in the urine.
    • Hair loss.
    • Suicidal behavior.

    See Drug Reference for a full list of side effects. (Drug Reference is not available in all systems.)



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