| abstract |
The use of phosphodiesterase 5 (PDE5) inhibitors for treatment of schizophrenia is described. Suitable PDE5 inhibitors for use for treatment of schizophrenia include sildenafil, vardenafil, tadalafil, E-8010, zaprinast, and E-4021. In one embodiment, for example, a method is described for treating schizophrenia in a patient which comprises treating the patient with an effective amount of a PDE5 inhibitor, or a pharmaceutically acceptable salt, solvate, or composition thereof. The PDE5 inhibitor may be administered orally. The PDE5 inhibitor may also be administered together with one or more conventional antipsychotic medications such as risperidone, olanzapine, quetiapine, ziprasidone, aripiprazole, clozapine, haloperidol, and fluphenazine. |