In general, the course of illness in SD tends to be better than in schizophrenia, but not as good as in pure mood disorders without psychotic features. There is no specific medication that works well in every patient with SD, but several medications may be very helpful. These include lithium, valproate, risperidone, and clozapine. Patients with SD also benefit from counseling and support. While there is no cure for SD, long periods of relatively good function are possible, with appropriate treatment.
Support groups can also be very helpful.
You may also want to get hold of the NAMI book, Surviving Schizophrenia , even though SD is not exactly the same illness.