Risperidone is an atypical (second-generation) antipsychotic commonly used to treat schizophrenia. It works mainly by blocking dopamine (D2) and serotonin (5-HT2) receptors in the brain, which helps reduce hallucinations, delusions, and disorganized thinking. Compared to older antipsychotics, it tends to cause fewer movement-related side effects, though weight gain, drowsiness, and metabolic changes (like increased blood sugar or cholesterol) can occur. Risperidone is available in oral tablets, liquid, and long-acting injectable forms, making it useful for both daily treatment and patients who struggle with medication adherence. It is often prescribed as a first-line option for managing acute episodes as well as for long-term maintenance in schizophrenia.