Also available in 5 mg 10 mg 25 mg 50 mg 200 mg 500 mg 1 mL 10 mM (in DMSO) and bulk. Please contact Fisher for quotes. Fluphenazine decanoate is dopamine D2 receptor blockeand is a long-acting phenothiazine neuroleptic that used to treat schizophrenia. purity: 100%