Neurology
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Randomized Controlled Trial Clinical Trial
A randomized, double-blind, placebo controlled study on analgesic effects of botulinum toxin A.
Botulinum toxin type A (BTXA) is used to treat neurologic disorders associated with increased muscle tone. Its use is often associated with pain relief. ⋯ The results suggest that pain reduction after BTXA treatment is mediated through its effect on muscle tone rather than a direct analgesic effect.