Botulinum toxin can spread to a distance of 30–45 mm within the injected muscles on the adjacent muscles, regardless of whether these muscles are separated by fasciae. Neck muscles are prone to diffusion of botulinum toxin, and paralysis of the incorrect muscles contributes to dysphonia, dysphagia or dystonia. Moderate https://jetonlinepharma.us/product-category/botulinum-toxins/