This medication is a long-acting form of fluphenazine that is used to treat certain mental/mood problems (chronic schizophrenia). Fluphenazine decanoate is usually used in patients who have benefited from regular doses of short-acting forms of fluphenazine and who may benefit from long-term (maintenance) treatment with less frequent dosing. Fluphenazine belongs to a class of medications called phenothiazines and is also referred to as a neuroleptic. It works by affecting the balance of natural chemicals (neurotransmitters) in the brain.
Drowsiness, lethargy, dizziness, nausea, loss of appetite, sweating, dry mouth, blurred vision, headache, constipation, and pain/redness at the injection site may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.