Trans-(E)-Flupentixol Dihydrochloride is primarily used in the treatment of psychiatric disorders, particularly schizophrenia and other psychotic conditions. It functions as a potent antipsychotic agent by blocking dopamine receptors in the brain, helping to alleviate symptoms such as hallucinations, delusions, and disordered thinking. Additionally, it is sometimes prescribed for managing chronic anxiety and depression, especially in cases where other treatments have proven ineffective. Its long-acting formulation allows for less frequent dosing, improving patient adherence to treatment regimens.