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Snapshot of Betaseron® (Interferon beta-1b)

Betaseron®: Descriptives1
Method of administration Subcutaneuos (under the skin) injection
Indication For the treatment of relapsing forms of multiple sclerosis to reduce the frequency of clinical exacerbations
Needle size ½" length2
Delivery information Requires reconstitution (mixing) and filling syringes before injection
Injection aids(s) Autoinjection device available
Pregnancy category Category C1 (when administered to pregnant animals, there was some harm to the fetus)3
Black box warning No

Betaseron®: Common side effects/reactions1
Clinically significant difference in flu-like symptoms when compared to placebo (an inactive substance) Yes
Fatigue/Malaise (bodily discomfort) increased while on therapy Yes
Warning for use in people with depression Yes
Warning for use in people with suicidal thoughts Yes
Warning or precaution for liver impairment Yes
Recommended monitoring of liver function or complete blood count Yes
Associated with localized site reactions Yes
Associated with neutralizing antibodies (proteins produced by the body that may decrease the effectiveness of therapy) Yes

Additional important information about Betaseron®

The most commonly reported adverse reactions are lymphopenia, injection site reaction, asthenia, flu-like symptom complex, headache, and pain. Betaseron should be used with caution in patients with depression. Injection site necrosis has been reported in 5% of patients in controlled trials. Patients should be advised of the importance of rotating injection sites. Female patients should be warned about the potential risk to pregnancy. Cases of anaphylaxis have been reported rarely.

06223564/060778

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References:
  1. Betaseron® prescribing information, 10/03. Berlex Laboratories, Inc.
  2. Betaseron® Web site. Available at: http://www.betaseron.com/treatment/other/avonex.html. Accessed April 26, 2006.
  3. FDA Web site. Available at: http://www.fda.gov/cder/handbook/categc.htm. Accessed April 26, 2006
  4. Betaseron® Web site. Available at: http://www.betaseron.com/popups/safety.html. Accessed April 26, 2006.

Betaseron® is a registered trademark of Berlex Laboratories, Inc.