What medication is most commonly used to reduce impulsivity and aggression in patients with borderline personality disorder?

Divalproex is commonly used in the treatment of borderline personality disorder, particularly for its ability to reduce impulsivity and aggression in patients. This medication is a mood stabilizer and anticonvulsant that has been shown to help manage the emotional dysregulation often present in borderline personality disorder. By stabilizing mood and reducing irritability, it can lead to better control over impulsive behaviors and aggressive episodes, which are characteristic challenges for individuals with this disorder.

Lithium, fluoxetine, and sertraline can be helpful in managing symptoms associated with mood disorders and depression, but they are not primarily indicated for addressing impulsivity and aggression specifically in borderline personality disorder. Lithium is more commonly used for bipolar disorder; fluoxetine and sertraline are SSRIs that are effective for depression and anxiety but may not be as effective for the impulsivity aspect of borderline personality disorder as divalproex. Thus, divalproex stands out as the preferred choice in this context.