What is/are Sodium Valproate?
Sodium valproate (INN) or valproate sodium (USAN) is the sodium salt of valproic acid and is an anticonvulsant used in the treatment of epilepsy, anorexia nervosa, panic attack, anxiety disorder, posttraumatic stress disorder, migraine and bipolar disorder, as well as other psychiatric conditions requiring the administration of a mood stabilizer. Sodium valproate can be used to control acute episodes of mania and acute stress reaction. Side effects can include tiredness, tremors, nausea, vomiting and sedation. The intravenous formulations are used when oral administration is not possible.
In pregnancy, valproate has the highest risk of birth defects of any of the commonly used antiepilepsy drugs. However, some epilepsy can only be controlled by valproate, and seizures also pose grave risk to mother and child.
Some of the common adverse effects include tiredness, tremor, sedation and gastrointestinal disturbances. In addition, about 10% of the users experience reversible hair loss.
Mechanism of action
Sodium valproate is a weak blocker of sodium ion channels; it is also a weak inhibitor of enzymes that deactivate GABA such as GABA transaminase. It may also stimulate the synthesis of GABA, but the direct mechanism is not known. Because of its many mechanisms of action, sodium valproate has efficacy in all partial and generalised seizures including absence seizures.
This article uses material from the Wikipedia article Sodium Valproate, which is released under the Creative Commons Attribution-Share-Alike License 3.0.