Thank you for your question. To answer your question directly, ECT is typically used for Depression and Bipolar disorder. It is not typically used for schizophrenia, only as a last resort. The risks of ECT include confusion, exhaustion and loss of brain cells. The theory behind ECT and Schizophrenia is that ECT will reduce the amount of dopamine, but this type of treatment is very controversial, especially for treating schizophrenia
Please let me know if you have any further questions.