Flunarizine capsules generally refers to flunarizine hydrochloride capsules, flunarizine hydrochloride capsules usually do not have a specific dosage time, need to be under the guidance of a physician according to the development of their own condition to take medication, the specific dosage time is recommended to consult with a physician to follow the instructions of the doctor. Flunarizine hydrochloride is a vasodilator, mainly used in cerebral blood supply insufficiency, such as vertebral basilar artery blood supply insufficiency, can also be used for cerebral arteriosclerosis, cerebral thrombosis sequelae or recovery patients. It is also effective for some otogenic disorders such as sudden deafness, hearing loss and idiopathic tinnitus. The main active ingredient of Flunarizine Hydrochloride Capsules is Flunarizine Hydrochloride, a selective calcium channel blocker, which can prevent excessive calcium ions from entering the cell across the membrane, preventing excessive intracellular calcium complex. It can also prevent large amounts of calcium from entering neurons during ischemia and hypoxia, can improve cerebral microcirculation as well as neuronal metabolism, and can inhibit cerebral vasospasm. It should be noted that if there is a history of allergy to flunarizine hydrochloride capsules, or a history of depression, this drug is prohibited, it is recommended to take this drug under the guidance of a physician, not blindly self-medication, so as not to cause irreparable harm.