Flunarizine is primarily used in the prevention of migraines, particularly in patients who experience frequent or severe episodes. It helps reduce the frequency, duration, and intensity of migraine attacks by stabilizing blood vessel activity and modulating calcium channels in the brain. Additionally, it is employed in the management of vestibular disorders, such as vertigo and dizziness, by improving blood flow to the inner ear and reducing abnormal neuronal activity. Its anti-histaminic and anti-serotonergic properties also contribute to its efficacy in alleviating symptoms associated with motion sickness and certain types of tinnitus. Flunarizine is often prescribed when other treatments have proven ineffective or unsuitable for the patient.