Betahistine can be used to treat cervical spondylosis, especially in the treatment of vertebral artery cervical spondylosis. Betahistine belongs to the group of histamine drugs, which mainly dilate the capillaries and increase the blood flow to the brain tissue and the inner ear circulation. In the pathological mechanism of vertebral artery-type carotid disease, the vertebral artery is often compressed and irritated by the cervical bone or cervical intervertebral discs, which can cause contracture and narrowing of the vertebral artery, which can lead to a decrease in the blood supply to the brain, resulting in dizziness, vertigo, nausea, and vomiting symptoms. By using betahistine, the patient can make the vertebral artery dilated, the blood flow of the vertebral artery increases, which will make the blood supply to the brain increase, thus reducing dizziness, nausea, vomiting.