What is Fluphenazine Decanoate Injection?
Fluphenazine Decanoate is a first-generation (typical) antipsychotic from the phenothiazine class. It is formulated in an oil-based depot injection, allowing for prolonged action — typically lasting 2 to 4 weeks — making it ideal for long-term management of psychotic symptoms in patients who may struggle with daily medication adherence.
Medical Uses of Fluphenazine Decanoate Injection
- Maintenance treatment of schizophrenia
- Management of psychotic disorders
- Prevention of psychotic relapse in non-compliant patients
- Off-label: Bipolar disorder (in select cases under physician guidance)
How Fluphenazine Decanoate Injection Works
Fluphenazine decanoate works by:
- Blocking dopamine D2 receptors in the brain, which reduces psychotic symptoms like hallucinations, delusions, and disorganized thinking.
- Its decanoate ester form ensures slow and sustained release, maintaining therapeutic drug levels for up to 2–4 weeks after intramuscular injection.
Common Side Effects of Fluphenazine Decanoate Injection
- Sedation or drowsiness
- Extrapyramidal symptoms (EPS): tremors, rigidity, restlessness
- Dry mouth or blurred vision
- Weight gain
- Menstrual irregularities
- Rare: Tardive dyskinesia, Neuroleptic Malignant Syndrome (NMS)
⚠️ Use under strict medical supervision. Monitor patients for motor side effects, especially with long-term use.
Why Choose Farbe Firma for Fluphenazine Decanoate Injection?
WHO-GMP Certified Manufacturing Facility
Produced in a sterile, controlled environment using EU & PIC/S-compliant standards.
Comprehensive Regulatory Documentation
We provide CTD-format dossiers, FSC, COPP, COA, MSDS, and Stability Data for global filings.
Export Presence in 30+ Countries
Strong supply chain across Africa, CIS, Latin America, and Asia-Pacific.
Customizable MOQs & Private Labeling
Offering tailored solutions for tenders, distributors, and contract manufacturing.
Consistent Quality & Competitive Pricing
Reliable quality assurance and cost-effective global pricing for psychiatric injectables.
FAQs on Fluphenazine Decanoate Injection
Q1: What is Fluphenazine Decanoate used for?
It is used for long-term treatment of schizophrenia and chronic psychotic conditions, especially where patient adherence is a concern.
Q2: How often is it administered?
Typically given every 2 to 4 weeks via deep intramuscular injection (gluteal muscle), depending on the patient’s response.
Q3: Is it suitable for acute psychosis?
No, it is not for acute agitation or psychosis. It’s primarily for maintenance therapy.
Q4: What is the shelf life?
Generally 24 to 36 months, depending on storage conditions and packaging format.
Q5: Do you provide samples and documentation for regulatory submission?
Yes. We offer trial samples, full regulatory support, and CTD-format dossiers for product registration globally.
Looking for a Reliable Fluphenazine Decanoate Injection Manufacturer?
Farbe Firma is your trusted partner for long-acting psychiatric injectables with WHO-GMP certification, high quality, and global supply capabilities.



