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UPDATED 5/1/09:  FDA Report on Botox and
Cerebral Palsy

The FDA has added some updated information regarding the use of Botox in children.  They
are now requiring that all manufacturers of Botox add a box warning "regarding the risk of
adverse events when the effects of the toxin spread beyond the site where it was injected".   
The manufacturers also have to come up with a Risk Evaluation and Mitigation Strategy.  
This is to measure whether the benefits outweigh the risks.  THE FDA has reviewed new
data regarding the use of Botox in pediatric cases.  This is the summary:

    In pediatric postmarketing adverse event case reports, botulinum toxin products were mostly used
    to treat muscle spasticity in cerebral palsy, a use that has not been approved by the FDA. The
    reported cases of spread of botulinum toxin effect beyond the site of injection were described as
    botulism, or involved symptoms including difficulty breathing, difficulty swallowing, muscular
    weakness, drooping eyelids, constipation, aspiration pneumonia, speech disorder, facial drooping,
    double vision, or respiratory depression.  Serious case reports described hospitalizations involving
    ventilatory support and reports of death.  

The FDA continues to support the recommendations that they made previously on Feb 8,
2008 which you can read below.

On February 8, 2008 the Federal Drug Administration (FDA) issued a report on the use of
Botulinum Toxin Type A and Type B in children and adults.  They have received reports of
severe adverse reactions (which may be botulism) to botulinum doses including
hospitalization and death in children.  These adverse effects have occurred mostly in
children with spastic cerebral palsy.  Doctors are currently using Botox off label in children
with cerebral palsy for the drug is not approved for this use in the United States.  The FDA is
presently reviewing: data from pharmaceutical companies, medical   research and
evaluating cases from its reporting system.  Currently the FDA reports that most of the
pediatric cases were children under 16 years old with cerebral palsy limb spasticity.  

The FDA recommends that any professionals that work with clients who receive botulinum
should be aware of the symptoms of botulism.  Some symptoms of botulism are:
  • difficulty swallowing
  • weakness
  • difficulties breathing
  • voice changes
  • shortness of breath.  

They should also inform the clients of these symptoms so that they are aware of potential
side effects and to seek immediate medical attention.  In addition, the FDA reports that
these symptoms of botulism have been reported to occur  as quickly as one day after Botox
and as late as several weeks after the Botox treatment.  

The FDA plans to follow up on this report when the review of all the data is complete.  If you
have had experience with serious side effects of botulinum, the FDA would like you to report
it by filling out a form at
http://www.fda.gov/medwatch/report/hcp.htm.

Reference:  
US Food and Drug Administration
UPDATE Follow-up to the February 8, 2008, Early
Communication about an Ongoing Safety Review of Botox and Botox Cosmetic
(Botulinum toxin Type A) and Myobloc (Botulinum toxin Type B)
Retrieved from the web on 5/1/09 at http://www.fda.
gov/CDER/Drug/early_comm/botulinium_toxins200904.htm

US Food and Drug Administration.  
Early Communication about an Ongoing Safety
Review Botox and Botox Cosmetic (Botulinum toxin Type A) and Myobloc
(Botulinum toxin Type B).
 Retrieved from the web on 3/19/08 at  
http://www.fda.gov/cder/drug/early_comm/botulinium_toxins.htm.  
Disclaimer:  These pages are not intended to provide medical advice or physician/therapist instruction.  
Information provided should not be used for diagnostic or training purposes.  Consult a therapist or
physician regarding specific diagnoses or medical advice.
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