used in treating schizophrenia ( a mental disorder that results in hallucinations or delusions and adversely affects a person’s ability. Oplin 50 Tablet is a brand name of Quetiapine Tablet 50 mg that is used in treating schizophrenia ( a mental disorder that results in hallucinations or delusions and adversely affects a person’s ability to think and behave) and mania. It is useful in treating bipolar disorders. It is completely safe to buy a Quetiapine 50 mg tablet from at the lowest price in India.