Oxigran 10 Tablet contains Flunarizine 10 mg, a calcium channel blocker primarily used for the prophylaxis of migraine and the management of vertigo associated with vestibular disorders. Flunarizine acts by inhibiting the influx of calcium ions into vascular smooth muscle and neurons, thereby stabilizing neuronal excitability and reducing cerebral vasospasm. This pharmacological action helps in preventing migraine attacks and alleviating symptoms related to vestibular dysfunction such as dizziness and imbalance. Oxigran 10 is indicated for patients experiencing frequent migraine episodes or chronic vertigo unresponsive to conventional therapy. The tablet is typically administered once daily, preferably in the evening, to minimize potential sedative effects. Common adverse reactions may include drowsiness, weight gain, and gastrointestinal disturbances, while rare side effects include extrapyramidal symptoms and depression; therefore, caution is advised in patients with a history of depression or Parkinson’s disease. Oxigran 10 should be used under medical supervision, with dose adjustments considered based on therapeutic response and tolerability. It is contraindicated during pregnancy and lactation. Patients are advised to avoid alcohol and activities requiring mental alertness until the drug’s effects are known. Regular follow-up is recommended to monitor efficacy and side effects.