Valproate: The Key Drug for Seizures and Bipolar Disorder
Valproate (also known as Valproic Acid) is a mood stabilizer and antiepileptic drug used to treat seizures, bipolar disorder, and migraine prevention. It helps control the abnormal electrical activity in the brain that causes seizures and mood swings.
Mechanism of Action
Valproate increases gamma-aminobutyric acid (GABA) activity in the brain, which has a calming effect on brain activity. It also inhibits sodium channels, preventing the abnormal electrical signals that lead to seizures.
Indications
● Epilepsy: For the treatment of generalized and partial seizures.
● Bipolar Disorder: For managing manic episodes and stabilizing mood.
● Migraine Prophylaxis: To prevent migraines in patients with frequent attacks.
Dosage and Administration
● Seizures: 10-15 mg/kg/day, gradually increased to a maximum of 60 mg/kg/day.
● Bipolar Disorder: Start with 750 mg/day, adjusted based on response.
● Migraine: 250 mg twice daily.
Side Effects
● Common: Nausea, tremors, weight gain, and hair loss.
● Serious: Liver toxicity, pancreatitis, and birth defects (if used during pregnancy).
Pregnancy Category: Category D – Valproate can cause birth defects, and it should only be used during pregnancy if no alternatives are available.
Common Brands
● Depakote
● Epival
● Depakene
