RESUMO
Antipsychotics are the drug of choice for patients with schizophrenia, but they can induce hyperprolactinemia and growth of pituitary adenomas by blocking dopamine 2 receptors in the pituitary gland. In contrast, the medical treatment for a prolactinoma is a dopamine agonist. Therefore, managing a patient concurrently diagnosed with a prolactinoma and psychosis is challenging. We describe a patient with schizophrenia who was diagnosed with a prolactinoma. We changed his neuroleptic to quetiapine and prescribed bromocriptine for the prolactinoma. As a result, the patient was successfully treated with a dopamine agonist and antipsychotic without psychotic exacerbation. Our case suggests that dopamine agonists can be administrated to patients with schizophrenia and a prolactinoma without adversely affecting their psychopathological status.