Bocouture 50U is a botulinum type A product. Doctors use this product to relax the muscles. By blocking the nerve impulses in injected areas, Bocouture prevents muscles from contracting, leading to temporary and reversible relaxation. Also, it is used in patients under 65 years old for improvement of upper facial lines. Bocouture 50U is prohibited for patients with allergic reactions to ingredients of neurotoxin type A. If the patient has an infection in injected area or suffers from a generalized disorder of muscle activity. Sometimes botulinum toxin can spread away from the injected area and cause symptoms like trouble saying words clearly, swallowing, or breathing. Sometimes, it provokes double vision, loss of bladder control loss of strength, muscle weakness, hoarseness, change or loss of voice. If this happens to you, please refrain from dangerous activities.