Abstract
Botulinum toxin (BT) is a neurotoxin that paralyzes muscles by inhibiting release of acetylcholine from presynaptic vesicles at the neuromuscular junction. In people with multiple sclerosis (MS), clinical experience and research studies show that local injection of minute quantities of BT can temporarily control skeletal muscle spasticity, bladder detrusor hyperreflexia, and tremor. Specifically, BT injections have been shown to reduce muscle tone and improve passive function, and possibly improve active function, in patients with spasticity. Injection of BT into the bladder wall is a uniquely effective, safe, and durable treatment in patients with neurogenic detrusor hyperreflexia due to MS who have insufficient response or who do not tolerate oral antimuscarinic medications. This procedure has markedly reduced the need for indwelling catheters and bladder surgery. In addition, a recent study suggests BT may be effective for select patients with MS-associated upper extremity tremor. Appropriate use of BT can improve quality of life for many patients with MS.
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Michelle H. Cameron and Meredith Frederick declare that they have no conflict of interest.
Francois Bethoux has received consultancy fees from Concert Pharmaceuticals, Merz Pharma, Medtronic, and GW Pharma, along with grants from Merz Pharma and Medtronic. He has also received payments from Allergan for development of educational presentations.
Nina Davis has received payments from Astellas Pharmaceuticals for development of educational presentations.
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This article does not contain any studies with human or animal subjects performed by any of the authors.
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This article is part of the Topical Collection on Demyelinating Disorders
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Cameron, M.H., Bethoux, F., Davis, N. et al. Botulinum Toxin for Symptomatic Therapy in Multiple Sclerosis. Curr Neurol Neurosci Rep 14, 463 (2014). https://doi.org/10.1007/s11910-014-0463-7
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DOI: https://doi.org/10.1007/s11910-014-0463-7