Promacid is used to treat schizophrenia, a mental disorder characterized by disturbed thinking, hallucinations, and detachment from reality. Promacid helps reduce the severity of these symptoms and improve a person's overall ability to engage in daily life. It is also used to treat severe mood disorders, such as mania resulting from bipolar disorder, by reducing hyperactivity and restoring mood balance.
Promacid is also used to control severe vomiting and nausea resulting from certain medical conditions or as side effects of other treatments, such as chemotherapy. This medication may be prescribed for severe anxiety and tension when other treatments have failed or when rapid symptom relief is needed.