Do not use botulinum toxin type B without first talking to your doctor if you have
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a neuromuscular disorder such as amyotrophic lateral sclerosis (ALS), motor neuropathy, myasthenia gravis, Lambert-Eaton syndrome, and others; or
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an infection at the intended site of injection.
The use of botulinum toxin type B may be dangerous if you have any of the conditions listed above.
Botulinum toxin type B is in the FDA pregnancy category C. This means that it is not known whether it will be harmful to an unborn baby. Do not use botulinum toxin type B without first talking to your doctor if you are pregnant or could become pregnant during treatment.
It is not known whether botulinum toxin type B passes into breast milk. Do not use botulinum toxin type B without first talking to your doctor if you are breast-feeding a baby.
Botulinum toxin type B will be administered by injection into the muscle by a healthcare professional.
Since botulinum toxin type B is administered by a healthcare professional, missing a dose should not be a problem.
Seek emergency medical attention or contact your doctor immediately if you experience any of the following serious side effects:
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an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);
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difficulty breathing, talking, or swallowing;
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unusual or excessive muscle weakness;
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chest pain or irregular heartbeats; or
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eye infection, ulceration, double vision, or other eye problems.
Other less serious side effects may be more likely to occur. Talk to your doctor if you experience:
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soreness at the injection site;
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upset stomach or nausea;
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dry mouth; or
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difficulty swallowing.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.
Seek emergency medical attention or contact your doctor immediately or if you experience difficulty breathing, swallowing, or speaking or excessive muscle weakness during treatment with botulinum toxin type B.
There are no restrictions on food, beverages, or activities during treatment with botulinum toxin type B, unless otherwise directed by your doctor.
Botulinum toxin type B should not be used with other forms of botulinum toxin or other medications that affect the nerves or muscles, except under the direction of a doctor.
Drugs other than those listed here may also interact with botulinum toxin type B. Do not take other prescription or over-the-counter medications, including herbal products, during treatment with botulinum toxin type B without first talking to your doctor.
Since Botulinum toxin type B is administered by a healthcare professional, an overdose is unlikely to occur. If an overdose is suspected or if the medication is taken by mouth, seek emergency medical attention.
Symptoms of an overdose of botulinum toxin type B may include muscle weakness or paralysis, including difficulty breathing or swallowing.
