Cinnarizine is a medication used to prevent and treat symptoms of motion sickness such as nausea, vomiting and dizziness. The medication is used to treat inner ear disorders that cause dizziness such as Meniere disease. Cinnarizine is used to improve blood circulation in some cases such as treating tinnitus.
It may be used to prevent migraine attacks. Cinnarizine works by reducing the activity of histamine, which means it reduces the effect of the chemical histamine in the body. Histamine can cause symptoms such as nausea and vomiting. Cinnarizine helps to widen blood vessels, which improves blood flow to the inner ear and brain.