Fluphenazine Decanoate: uses, dosing, side effects & brands
Fluphenazine Decanoate is a medicine sold in the U.S. under one brand. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Injectable
- Sold as
- Prolixin Decanoate
- Prescription?
- Prescription only
- Generic available?
- Not in our catalog
Every fluphenazine decanoate product we track (1)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
Only one: Prolixin Decanoate.
How long fluphenazine decanoate keeps
No fluphenazine decanoate label we read sets a separate limit for after opening, but they do specify how it must be stored — and the stability behind any date assumes those conditions.
Does fluphenazine decanoate expire? The in-use limits and storage rules from its labelsWhat people report to the FDA about fluphenazine decanoate
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 471 reports naming fluphenazine decanoate, and the FDA flagged 86% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- neuroleptic malignant syndrome47 reports
- sedation38 reports
- akathisia31 reports
- parkinsonism31 reports
- weight increased30 reports
- delusion26 reports
- dystonia26 reports
- constipation25 reports
Read these as a signal, not a rate. A report does not mean fluphenazine decanoate caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label section above.
Source: openFDA drug/event (FAERS), retrieved July 25, 2026.
Related calculators
Frequently asked questions
Can you take fluphenazine decanoate with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run fluphenazine decanoate against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What forms does fluphenazine decanoate come in?
Across the brands we track, fluphenazine decanoate is currently marketed as injectable, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic fluphenazine decanoate?
We do not currently list a generic-labelled fluphenazine decanoate product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.
Cite this page
- APA
- pharmaranks. (2026, July 24). Fluphenazine Decanoate: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/fluphenazine-decanoate
- MLA
- “Fluphenazine Decanoate: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/fluphenazine-decanoate.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for fluphenazine decanoate on DailyMed (NIH) ↗.