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Excessive doses of MYOBLOC (botulinum toxin type b) may be expected to produce neuromuscular weakness with a variety of symptoms. Respiratory support may be required where excessive doses cause paralysis of respiratory muscles. In the event of overdose, the patient should be medically monitored for symptoms of excessive muscle weakness or muscle paralysis (see WARNINGS and PRECAUTIONS).Symptomatic treatment may be necessary.
Symptoms of overdose are likely not to be present immediately following injection. Should accidental injection or oral ingestion occur, the person should be medically supervised for several weeks for signs and symptoms of excessive muscle weakness or muscle paralysis.
In the event of overdose, antitoxin raised against botulinum toxin is available from the Centers for Disease Control and Prevention (CDC) in Atlanta, GA. However, the antitoxin will not reverse any botulinum toxin-induced effects already apparent by the time of antitoxin administration. In the event of suspected or actual cases of botulinum toxin poisoning, please contact your local or state Health Department to process a request for antitoxin through the CDC. If you do not receive a response within 30 minutes, please contact the CDC directly at 770-488-7100. More information can be obtained at http://ww.cdc.gov/ncidod/srp/drugs/drugservice.html.
MYOBLOC (botulinum toxin type b) is contraindicated in patients with a known hypersensitivity to any botulinum toxin preparation or to any of the components in the formulation.
MYOBLOC (botulinum toxin type b) is contraindicated for use in patients with infection at the proposed injection site(s).
Last reviewed on RxList: 8/14/2009
This monograph has been modified to include the generic and brand name in many instances.
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