Side Effects of Interferon Beta-1b

Skin reactions at the injection site, weakness, and flu-like symptoms are the most common side effects reported with interferon beta-1b. Side effects of the drug are usually minor and do not require medical attention in most cases. Some of the potentially serious side effects of interferon beta-1b that should be reported to a healthcare provider include suicidal thoughts or behavior, frequent infections, and difficulty breathing.

 

An Introduction to Interferon Beta-1b Side Effects

As with any medicine, side effects are possible with interferon beta-1b (Betaseron®); however, not everyone who takes the medication will experience side effects. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider.
 
(This article covers many, but not all, of the possible side effects with interferon beta-1b. Your healthcare provider can discuss a more complete list of side effects with you.)
 

Side Effects With Interferon Beta-1b to Report

There are a number of possible side effects with interferon beta-1b that you should report immediately to your healthcare provider, including, but not limited to:
 
  • Depression (see Betaseron and Depression)
  • Suicidal thoughts or behavior
  • Signs of liver problems, such as yellow eyes or skin (jaundice)
  • Infection or an open sore at the injection site
  • Frequent infections, which may be a sign of low white blood cells
  • Unusual bruising or bleeding, which may be a sign of low blood platelets
  • Thyroid problems
  • Chest pain, difficulty breathing, coughing, high blood pressure, or other signs of heart problems
  • Signs of an allergic reaction, including unexplained rash, hives, itching, unexplained swelling, wheezing, or difficulty breathing or swallowing.
     
(Side Effects of Interferon Beta-1b Continued: Page 2)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;