Hi, thanks for the query; If you are a diagnosed case of bipolar disorder; what you need is a mood stabilizer type medication which shall prevent cycling from depression to mania & help you maintain a normal (euthymic) state. There are various mood stabilizers available & depending upon your clinical profile, your history of response to previous medications & whether you have any substance use (alcohol, tobacco, cannabis etc.) habits etc. In my opinion, Lithium & Sodium valproate (divalproate sodium) are best amongst the available mood stabilizer medications & lithium is typically effective to prevent depressive relapses. There are others like quetiapine, olanzapine+ fluoxetine combination, lamotrigine which are approved for bipolar depression. You should consult your Psychiatrist for which of these are suitable for you to relieve your depressive symptoms. Also, try to maintain a balanced lifestyle in form of fixed sleeping & waking times, avoiding substance use, daily physical exercise, sharing any stressful event with friends, close confidants. This will also help you prevent relapses. Good Luck