Neurol Neurochir Pol
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The author reviews the current opinions on the treatment of spasticity with special consideration given to the new method of treatment with local injections of botulinum toxin A into the spastic muscles. Botulinum toxin is the treatment of choice in focal dystonias and hemifacial spasm. ⋯ Recent reports have confirmed the safety and effectiveness of the method in spasticity, especially when it is focal, not diffuse or severe and without concomitant severe paresis. The author describes also the basic data of the pathophysiology of spasticity and reviews other therapeutic options and practical problems concerning the injections of botulinum toxin.