Botulinum toxin can distribute to a length of 30–45 mm from the injected muscles on the adjacent muscles, although these muscles are separated by fasciae. Neck muscles are susceptible to diffusion of botulinum toxin, and paralysis of the wrong muscles contributes to dysphonia, dysphagia or dystonia. Mild and transient https://jetonlinepharma.us/product-category/botulinum-toxins/