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Fluphenazine
Systematic (IUPAC) name
2-[4-[3-[2-(trifluoromethyl)-
10H-phenothiazin-10-yl]propyl]-
piperazin-1-yl]ethanol
Identifiers
CAS number 69-23-8
ATC code N05AB02
PubChem 3372
DrugBank APRD00633
Chemical data
Formula C 22H26F3N3OS 
Mol. mass 437.523 g/mol
SMILES eMolecules & PubChem
Pharmacokinetic data
Bioavailability 40% - 50%
Metabolism Hepatic
Half life 15 to 30 hours
Excretion bile/feces
Therapeutic considerations
Pregnancy cat. C(US)
Legal status Prescription only
Routes oral, IM, decanoate
 Yes check.svgY(what is this?)  (verify)

Fluphenazine is a typical antipsychotic drug used for the treatment of psychoses such as schizophrenia and acute manic phases of bipolar disorder. It belongs to the piperazine class of phenothiazines and is extremely potent; more potent than haloperidol and around fifty to seventy times the potency of chlorpromazine. It is marketed under the brand name of Prolixin and Sydocate(Surge Laboratories.)

Its main use is as a long acting injection given once every two or three weeks to people with schizophrenia who have a poor compliance with medication and suffer frequent relapses of illness. In some countries this can be involuntary under Community Treatment Orders. Its side effect profile is similar to haloperidol, namely predominantly dopamine-blocking effects which give rise to akathisia, parkinsonism and tremor. Long term side effects include the potentially irreversible tardive dyskinesia and the potentially fatal neuroleptic malignant syndrome.

Contents

Brand names

Fluphenazine decanoate Modecate, Prolixin Decanoate, Dapotum D, Anatensol, Fludecate, Sinqualone Deconoate
Fluphenazine enanthate Dapotum Injektion, Flunanthate, Moditen Enanthate Injection, Sinqualone Enanthate
Fluphenazine hydrochloride Prolixin, Permitil, Dapotum, Lyogen, Moditen, Omca, Sediten, Selecten, Sevinol, Sinqualone, Trancin

Pharmacokinetics

Fluphenazine has an incomplete oral bioavailability of 40% to 50% (due to extensive first pass metabolization in the liver). Its half life is 15 to 30 hours.

Dosing

12.5 mg of fluphenazine decanoate is roughly equivalent to 100 mg of zuclopenthixol decanoate or 20 mg of flupentixol decanoate.

Side effects

Notable side effects include akathisia, extrapyramidal side effects, including tardive dyskinesia and Rabbit syndrome. The frequency and severity of extrapyramidal side effects are direct proportional to the dose given and the duration of treatment. Mostly notably, although rare, it can cause hypothermia because it inhibits ability to shiver.

Sedative, allergic-toxic and anticholinergic/sympatholytic side effects are less likely to occur compared with chlorpromazine. The direct deposition of fluphenazine in the cornea and retina has so far not been reported.

Neuroleptic malignant syndrome, although rare, is a potentially lethal side effect of all antipsychotics.

References

  • "Fluphenazine." Davis's Drug Guide for Nurses, Eighth Edition. F.A. Davis Company, 2005. ISBN 0-8036-2455-7
  • FLUPHENAZINE DICHLORHYDRATE [Article in French] Biam Last Updated: 11 December 2000. Accessed 14 September 2005.







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