The efficacy and effect of BOTOX (generic name Botulinum toxin type A for injection) is mainly to block the release of peripheral acetylcholine and reduce muscle tone. Botulinum toxin type A for injection can block the release of peripheral acetylcholine, and is mainly suitable for blepharospasm, facial muscular spasm and related focal dystonia, and can also be used in adults aged 65 years and below with moderate to severe frown lines caused by the frown muscles or descending interbrow muscles. Contraindications include hypersensitivity to the product, myasthenia gravis or myasthenia gravis syndrome, and infection at the injection site. Common adverse reactions to the drug include drooping eyelids, ecchymosis, headache, low-grade fever, nausea, muscle weakness, facial pain, and eye irritation. Note that the drug should also be used with caution in people with a history of dysphagia and aspiration, as well as in cases of skin infection at the injection site, significant facial asymmetry, drooping eyelids, and excessive skin laxity. Specific use of the drug should be carried out under the guidance of a specialist, not unauthorized use of the drug.