Molecule
Fluphenazine decanoate is a phenothiazine. It is available as injection for intramuscular and subcutaneous use. MedsAcross supplies Fluphenazine decanoate for export from India to licensed hospitals, importers and physicians acting for named patients, with the documents each country requires.
Information from the US FDA prescribing information, retrieved 12 November 2026. Not yet medically reviewed.How we review
From the regulator-approved product information. Each section names its source.
Fluphenazine Decanoate Injection is a long-acting parenteral antipsychotic drug intended for use in the management of patients requiring prolonged parenteral neuroleptic therapy (e.g., chronic schizophrenics). Fluphenazine Decanoate Injection has not been shown effective in the management of behavioral complications in patients with mental retardation.
Source: US FDA prescribing information
Fluphenazine Decanoate Injection may be given IM or SC. A dry syringe and needle of at least 21 gauge should be used. Use of a wet needle or syringe may cause the solution to become cloudy. To begin therapy with Fluphenazine Decanoate Injection, the following regimens are suggested: For most patients, a dose of 12.5 to 25 mg (0.5 to 1 mL) may be given to initiate therapy. The onset of action generally appears between 24 and 72 hours after injection and the effects of the drug on psychotic symptoms becomes significant within 48 to 96 hours. Subsequent injections and the dosage interval are determined in accordance with the patient's response. When administered as maintenance therapy, a single injection may be effective in controlling schizophrenic symptoms up to four weeks or longer.
Source: US FDA prescribing information
Phenothiazines are contraindicated in patients with suspected or established subcortical brain damage. Phenothiazine compounds should not be used in patients receiving large doses of hypnotics. Fluphenazine Decanoate Injection is contraindicated in comatose or severely depressed states. The presence of blood dyscrasia or liver damage precludes the use of fluphenazine decanoate. Fluphenazine Decanoate Injection is not intended for use in children under 12 years of age. Fluphenazine Decanoate Injection is contraindicated in patients who have shown hypersensitivity to fluphenazine, cross-sensitivity to phenothiazine derivatives may occur.
Source: US FDA prescribing information
WARNING Increased Mortality in Elderly Patients with Dementia-Related Psychosis - Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug treated patients of between 1.6 to 1.7 times the risk of death in placebo-treated patients. Increased Mortality in Elderly Patients with Dementia-Related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Fluphenazine decanoate injection is not approved for the treatment of patients with dementia-related psychosis.
Source: US FDA prescribing information
Central Nervous System The side effects most frequently reported with phenothiazine compounds are extrapyramidal symptoms including pseudoparkinsonism, dystonia, dyskinesia, akathisia, oculogyric crises, opisthotonos, and hyperreflexia. Muscle rigidity sometimes accompanied by hyperthermia has been reported following use of fluphenazine decanoate. Most often these extrapyramidal symptoms are reversible, however, they may be persistent. The frequency of such reactions is related in part to chemical structure: one can expect a higher incidence with fluphenazine decanoate than with less potent piperazine derivatives or with straight-chain phenothiazines such as chlorpromazine. With any given phenothiazine derivative, the incidence and severity of such reactions depend more on individual patient sensitivity than on other factors, but dosage level and patient age are also determinants.
Source: US FDA prescribing information
Store at 20° to 25°C (68° to 77°F). PROTECT FROM LIGHT.
Source: US FDA prescribing information
For healthcare professionals and buyers. This is not medical advice. Treatment decisions belong to the prescriber.
1 presentations of Fluphenazine decanoate, sorted by availability.
| Medicine | Manufacturer | Register | Availability |
|---|---|---|---|
| Fluphenazine decanoate 125 mg/5 mL injectionIntramuscular, subcutaneousGeneric name | — | US FDA | Available on request |
Approval facts from US FDA, EMA and CDSCO data, and registration status by country where we hold register data.
| Register | Status | Source |
|---|---|---|
| US FDA | First approved 20 June 1972 | Drugs@FDA |
| EU (EMA) | Not recorded | — |
| India (CDSCO) | Not yet confirmed against CDSCO approval lists | — |
| United States | Registered | US FDA (NDC directory, openFDA)Checked 12 November 2026 |
Yes, on request. MedsAcross lists 1 presentations of Fluphenazine decanoate and sources them for licensed hospitals, importers and physicians against valid import documents.
Yes. The US FDA first approved Fluphenazine decanoate on 20 June 1972, according to Drugs@FDA.
No listed presentation of Fluphenazine decanoate is recorded as needing a cold chain. Storage conditions are shown on each presentation page.
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