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interferon alfa-2b (generic name)

Natural interferons are produced in the body to help the immune system fight viral infections and certain cancer growths
(in ter FEER on AL fa 2 b)
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What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • black, tarry stools
  • blood in the urine
  • bruising or pinpoint red spots on the skin
  • changes in vision
  • confusion
  • depression
  • difficulty breathing
  • difficulty sleeping
  • difficulty thinking or concentrating
  • fainting spells, lightheadedness
  • irregular heartbeat, palpitations or chest pain
  • nervousness
  • numbness or tingling in the fingers and toes
  • signs of infection like fever or chills, cough, sore throat, pain or difficulty passing urine
  • unusually weak or tired

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • changes in taste
  • cough
  • diarrhea
  • dry mouth
  • hair loss
  • headaches
  • loss of appetite
  • nausea, vomiting

Where should I keep my medicine?

Keep out of the reach of children.

Store in a refrigerator between 2 and 8 degrees C (36 and 46 degrees F). If you are using the powder, it should be used immediately after mixing or may be stored in the refrigerator for up to 24 hours. Do not freeze. Throw away any unused vials or syringes after the expiration date.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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Last Updated: May 05, 2009
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