Are Rizotal And Nexito Prescribed For Bi Polar Disorder?

I am taking rizotal 10 mg since last 2 years. My doctor told me that I am suffering from Bipolar Disorder. Today I visited another psychatrist, he siad that you do not have bipolar disorder and discontinued my older medicine and prescribed nexito 5 mg and zapiz 0.5 mg. Can you tell me the indication for this combination or it is also given to bipolar disorder patients?