Sizopin: A brand name for drug Clozapine, which is a second generation Antipsychotics (SGA). This drug is usually reserved for Chronic or Treatment Resistance Psychosis. Regular blood count is mandatory after using this drug since it may cause sever Neutropenia. Sizodon: A brand name of SGA Risperidone. Usually used in Psychosis and other behavioral disorders. Theoretically all SGA may cause sedation; metabolic side effects such as weight gain, high lipids and sugar level; hypersalivation, tremors etc. Use of each SGA is based on disease severity, age, sex and other health conditions etc. Hope you’ve got the general idea. Feel free for further inquiries.Thank you.