Respinol 2mg Tablet is used to treat schizophrenia and mania. It is taken with or without food, preferably at night, and should be taken at the same time each day to maintain a consistent level of medicine. It is important not to stop the medication suddenly without consulting a doctor, and discontinue it if you experience Neuroleptic malignant syndrome (NMS). Common side effects include insomnia, sedation, somnolence, parkinsonism, and headache. It may increase weight, but modifying lifestyle with a healthy diet and regular exercise can reduce this. Regular glucose monitoring is recommended.