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How is botulinum toxin used to treat essential tremor?

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Botox (subtype A) and Myobloc (subtype B) are the brand names for botulinum toxin, which can be used to treat some movement problems. The drugs work by weakening muscles to reduce tremor. The drug also can be used to treat voice or head tremors. This treatment involves an injection once every 3 months.

Don't take this drug if you're pregnant or if you have myasthenia gravis, post-polio syndrome, or Eaton-Lambert syndrome. Side effects of Botox are rare, but may include excessive muscle weakness or loss of appetite.

SOURCES: 

Mayo Clinic web site. 

International Essential Tremor Foundation.

Reviewed by Christopher Melinosky on September 27, 2019

SOURCES: 

Mayo Clinic web site. 

International Essential Tremor Foundation.

Reviewed by Christopher Melinosky on September 27, 2019

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Are there alternative therapies for essential tremor?

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