Cinnarizine is primarily used as an antihistamine and a calcium channel blocker, making it effective in treating various conditions related to blood flow and motion sickness. It is commonly prescribed to manage symptoms of vertigo, dizziness, and balance disorders, often associated with inner ear problems like Ménière's disease. By improving blood circulation in the inner ear and reducing the sensitivity of the vestibular system, it helps alleviate these symptoms. Additionally, cinnarizine is used to prevent and treat motion sickness, such as nausea and vomiting caused by travel. It works by stabilizing the overactive signals in the brain that trigger these symptoms. Beyond its neurological applications, cinnarizine is sometimes used off-label to address peripheral vascular diseases, as it helps dilate blood vessels and improve blood flow to the extremities. Its dual action on histamine receptors and calcium channels makes it a versatile medication for managing conditions related to circulation and sensory disturbances.