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Perphenazine

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(Redirected from Perphenazine decanoate)
Perphenazine
Clinical data
AHFS/Drugs.comMonograph
MedlinePlusa682165
Pregnancy
category
  • AU: C
Routes of
administration		Oral and IM
Drug classTypical antipsychotic
ATC code
Legal status
Legal status
Pharmacokinetic data
Bioavailability40%
Metabolismhepatic
Elimination half-life8–12 (up to 20) hours
Identifiers
  • 2-[4-[3-(2-chloro-10H-phenothiazin-10-yl) propyl]piperazin-1-yl]ethanol
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.000.346 Edit this at Wikidata
Chemical and physical data
FormulaC21H26ClN3OS
Molar mass403.97 g·mol−1
3D model (JSmol)
  • Clc2cc1N(c3c(Sc1cc2)cccc3)CCCN4CCN(CCO)CC4
  • InChI=1S/C21H26ClN3OS/c22-17-6-7-21-19(16-17)25(18-4-1-2-5-20(18)27-21)9-3-8-23-10-12-24(13-11-23)14-15-26/h1-2,4-7,16,26H,3,8-15H2 checkY
  • Key:RGCVKNLCSQQDEP-UHFFFAOYSA-N checkY
  (verify)

Perphenazine is a typical antipsychotic drug. Chemically, it is classified as a piperazinyl phenothiazine. Originally marketed in the United States as Trilafon, it has been in clinical use for decades.

Perphenazine is roughly ten times as potent as chlorpromazine at the dopamine-2 (D2) receptor;[3] thus perphenazine is considered a medium-potency antipsychotic.[4][5]

Medical uses

[edit]

In low doses it is used to treat agitated depression (together with an antidepressant). Fixed combinations of perphenazine and the tricyclic antidepressant amitriptyline in different proportions of weight exist (see Etrafon below). When treating depression, perphenazine is discontinued as fast as the clinical situation allows.[citation needed] Perphenazine has no intrinsic antidepressive activity. Several studies show that the use of perphenazine with fluoxetine (Prozac) in patients with psychotic depression is most promising, although fluoxetine interferes with the metabolism of perphenazine, causing higher plasma levels of perphenazine and a longer half-life. In this combination the strong antiemetic action of perphenazine attenuates fluoxetine-induced nausea and vomiting (emesis), as well as the initial agitation caused by fluoxetine. Both actions can be helpful for many patients.

Perphenazine has been used in low doses as a 'normal' or 'minor' tranquilizer in patients with a known history of addiction to drugs or alcohol, a practice which is now strongly discouraged.[citation needed]

Perphenazine has sedating and anxiolytic properties, making the drug useful for the treatment of agitated psychotic patients.

A valuable off-label indication is the short-time treatment of hyperemesis gravidarum, in which pregnant women experience violent nausea and vomiting. This problem can become severe enough to endanger the pregnancy. As perphenazine has not been shown to be teratogenic and works very well, it is sometimes given orally in the smallest possible dose.

Effectiveness

[edit]

Perphenazine is used to treat psychosis (e.g. in people with schizophrenia and the manic phases of bipolar disorder and OCD). Perphenazine effectively treats the positive symptoms of schizophrenia, such as hallucinations and delusions, but its effectiveness in treating the negative symptoms of schizophrenia, such as flattened affect and poverty of speech, is unclear. Earlier studies found the typical antipsychotics to be ineffective or poorly effective in the treatment of negative symptoms,[6] but two recent, large-scale studies found no difference between perphenazine and the atypical antipsychotics.[7] A 2015 systematic review compared perphenazine with other antipsychotic drugs:

Perphenazine compared with any antipsychotic drug for schizophrenia[8]
Summary
Although perphenazine has been used in randomized trials for more than 50 years, incomplete reporting and the variety of comparators used make it impossible to draw clear conclusions. All data for the main outcomes were of very low quality evidence. At best it can be said that perphenazine showed similar effects—including adverse events—as several of the other antipsychotic drugs.[8]

Side effects

[edit]

As a member of the phenothiazine type of antipsychotics, perphenazine shares in general all allergic and toxic side-effects of chlorpromazine. A 2015 systematic review of the data on perphenazine conducted by the Cochrane Collaboration concluded that "there were no convincing differences between perphenazine and other antipsychotics" in the incidence of adverse effects.[8] Perphenazine causes early and late extrapyramidal side effects more often than placebo, and at a similar rate to other medium-potency antipsychotics[9] and the atypical antipsychotic risperidone.[10][11]

When used for its strong antiemetic or antivertignosic effects in cases with associated brain injuries, it may obscure the clinical course and interferes with the diagnosis. High doses of perphenazine can cause temporary dyskinesia. As with other typical antipsychotics, permanent or lasting tardive dyskinesia is a risk.

Discontinuation

[edit]

The British National Formulary recommends a gradual withdrawal when discontinuing antipsychotics to avoid acute withdrawal syndrome or rapid relapse.[12] Symptoms of withdrawal commonly include nausea, vomiting, and loss of appetite.[13] Other symptoms may include restlessness, increased sweating, and trouble sleeping.[13] Less commonly there may be a feeling of the world spinning, numbness, or muscle pains.[13] Symptoms generally resolve after a short period of time.[13]

There is tentative evidence that discontinuation of antipsychotics can result in psychosis.[14] It may also result in reoccurrence of the condition that is being treated.[15] Rarely tardive dyskinesia can occur when the medication is stopped.[13]

Pharmacology

[edit]

Pharmacodynamics

[edit]

Perphenazine has the following binding profile towards cloned human receptors unless otherwise specified:[16][17]

Molecular target Binding affinity (Ki[nM]) for perphenazine Binding affinity (Ki[nM]) for dealkylperphenazine Binding affinity (Ki[nM]) for 7-hydroxyperphenazine
5-HT1A 421 - -
5-HT2A 5.6 54 38
5-HT2C 132 - -
5-HT6 17 - -
5-HT7 23 - -
α1A 10 - -
α2A 810 - -
α2B 104.9 - -
α2C 85.2 - -
M1 2000 130 3400
M3 1848 - -
D1 29.9 (RS) - -
D2 0.765 - -
D2L receptor 3.4 85 4.1
D3 0.13 - -
D4 17 - -
D4.4 receptor 140 690 620
H1 8 - -
σ 18.5 (RB) - -


Acronyms:
RS — Rat striatum receptor.
RB — Rat brain receptor.

Pharmacokinetics

[edit]

Perphenazine has an oral bioavailability of approximately 40% and a half-life of 8 to 12 hours (up to 20 hours), and is usually given in 2 or 3 divided doses each day. It is possible to give two-thirds of the daily dose at bedtime and one-third during breakfast to maximize hypnotic activity during the night and to minimize daytime sedation and hypotension without loss of therapeutic activity.

Pharmacokinetics of long-acting injectable antipsychotics
Medication Brand name Class Vehicle Dosage Tmax t1/2 single t1/2 multiple logPc Ref
Aripiprazole lauroxil Aristada Atypical Watera 441–1064 mg/4–8 weeks 24–35 days ? 54–57 days 7.9–10.0
Aripiprazole monohydrate Abilify Maintena Atypical Watera 300–400 mg/4 weeks 7 days ? 30–47 days 4.9–5.2
Bromperidol decanoate Impromen Decanoas Typical Sesame oil 40–300 mg/4 weeks 3–9 days ? 21–25 days 7.9 [18]
Clopentixol decanoate Sordinol Depot Typical Viscoleob 50–600 mg/1–4 weeks 4–7 days ? 19 days 9.0 [19]
Flupentixol decanoate Depixol Typical Viscoleob 10–200 mg/2–4 weeks 4–10 days 8 days 17 days 7.2–9.2 [19][20]
Fluphenazine decanoate Prolixin Decanoate Typical Sesame oil 12.5–100 mg/2–5 weeks 1–2 days 1–10 days 14–100 days 7.2–9.0 [21][22][23]
Fluphenazine enanthate Prolixin Enanthate Typical Sesame oil 12.5–100 mg/1–4 weeks 2–3 days 4 days ? 6.4–7.4 [22]
Fluspirilene Imap, Redeptin Typical Watera 2–12 mg/1 week 1–8 days 7 days ? 5.2–5.8 [24]
Haloperidol decanoate Haldol Decanoate Typical Sesame oil 20–400 mg/2–4 weeks 3–9 days 18–21 days 7.2–7.9 [25][26]
Olanzapine pamoate Zyprexa Relprevv Atypical Watera 150–405 mg/2–4 weeks 7 days ? 30 days –
Oxyprothepin decanoate Meclopin Typical ? ? ? ? ? 8.5–8.7
Paliperidone palmitate Invega Sustenna Atypical Watera 39–819 mg/4–12 weeks 13–33 days 25–139 days ? 8.1–10.1
Perphenazine decanoate Trilafon Dekanoat Typical Sesame oil 50–200 mg/2–4 weeks ? ? 27 days 8.9
Perphenazine enanthate Trilafon Enanthate Typical Sesame oil 25–200 mg/2 weeks 2–3 days ? 4–7 days 6.4–7.2 [27]
Pipotiazine palmitate Piportil Longum Typical Viscoleob 25–400 mg/4 weeks 9–10 days ? 14–21 days 8.5–11.6 [20]
Pipotiazine undecylenate Piportil Medium Typical Sesame oil 100–200 mg/2 weeks ? ? ? 8.4
Risperidone Risperdal Consta Atypical Microspheres 12.5–75 mg/2 weeks 21 days ? 3–6 days –
Zuclopentixol acetate Clopixol Acuphase Typical Viscoleob 50–200 mg/1–3 days 1–2 days 1–2 days 4.7–4.9
Zuclopentixol decanoate Clopixol Depot Typical Viscoleob 50–800 mg/2–4 weeks 4–9 days ? 11–21 days 7.5–9.0
Note: All by intramuscular injection. Footnotes: a = Microcrystalline or nanocrystalline aqueous suspension. b = Low-viscosity vegetable oil (specifically fractionated coconut oil with medium-chain triglycerides). c = Predicted, from PubChem and DrugBank. Sources: Main: See template.

Formulations

[edit]

It is sold under the brand names Trilafon (single drug) and Etrafon/Triavil/Triptafen[28] (contains fixed dosages of amitriptyline). A brand name in Europe is Decentan pointing to the fact that perphenazine is approximately 10-times more potent than chlorpromazine. Usual oral forms are tablets (2, 4, 8, 16 mg) and liquid concentrate (4 mg/ml).

The 'Perphenazine injectable USP' solution is intended for deep intramuscular (i.m.) injection, for patients who are not willing to take oral medication or if the patient is unable to swallow. Due to a better bioavailability of the injection, two-thirds of the original oral dose is sufficient. The incidence of hypotension, sedation and extrapyramidal side-effects may be higher compared to oral treatment. The i.m.-injections are appropriate for a few days, but oral treatment should start as soon as possible.

In many countries, depot forms of perphenazine exist (as perphenazine enanthate and perphenazine decanoate). One injection works for 1 to 4 weeks depending on the dose of the depot-injection. Depot-forms of perphenazine should not be used during the initial phase of treatment as the rare neuroleptic malignant syndrome may become more severe and uncontrollable with this form. Extrapyramidal side-effects may be somewhat reduced due to constant plasma-levels during depot-therapy. Also, patient compliance is sure, as many patients do not take their oral medication, particularly if feeling better once improvement in psychosis is achieved.

Interactions

[edit]

Fluoxetine causes higher plasma levels and a longer elimination half-life of perphenazine, therefore a dose reduction of perphenazine might be necessary.

Perphenazine intensifies the central depressive action of drugs with such activity (tranquilizers, hypnotics, narcotics, antihistaminics, OTC-antiemetics etc.). A dose reduction of perphenazine or the other drug may be necessary.

In general, all neuroleptics may lead to seizures in combination with the opioid tramadol (Ultram).

Perphenazine may increase the insulin needs of diabetic patients. Monitor blood glucose levels of insulin-dependent patients regularly during long-term treatment.

References

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  1. ^ "FDA-sourced list of all drugs with black box warnings (Use Download Full Results and View Query links.)". nctr-crs.fda.gov. FDA. Retrieved 22 Oct 2023.
  2. ^ Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-16.
  3. ^ Rees L (August 1960). "Chlorpromazine and allied phenothiazine derivatives". British Medical Journal. 2 (5197): 522–5. doi:10.1136/bmj.2.5197.522. PMC 2097091. PMID 14436902.
  4. ^ Ascher-Svanum H, Zhu B, Faries D, Landbloom R, Swartz M, Swanson J (February 2006). "Time to discontinuation of atypical versus typical antipsychotics in the naturalistic treatment of schizophrenia". BMC Psychiatry. 6: 8. doi:10.1186/1471-244X-6-8. PMC 1402287. PMID 16504026.
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  6. ^ King DJ (February 1998). "Drug treatment of the negative symptoms of schizophrenia". European Neuropsychopharmacology. 8 (1): 33–42. doi:10.1016/S0924-977X(97)00041-2. PMID 9452938. S2CID 37692796.
  7. ^ Lieberman JA (October 2006). "Comparative effectiveness of antipsychotic drugs. A commentary on: Cost Utility Of The Latest Antipsychotic Drugs In Schizophrenia Study (CUtLASS 1) and Clinical Antipsychotic Trials Of Intervention Effectiveness (CATIE)". Archives of General Psychiatry. 63 (10): 1069–72. doi:10.1001/archpsyc.63.10.1069. PMID 17015808.
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  10. ^ Schillevoort I, de Boer A, Herings RM, Roos RA, Jansen PA, Leufkens HG (July 2001). "Antipsychotic-induced extrapyramidal syndromes. Risperidone compared with low- and high-potency conventional antipsychotic drugs". European Journal of Clinical Pharmacology. 57 (4): 327–31. doi:10.1007/s002280100302. hdl:1874/27881. PMID 11549212. S2CID 11934011.
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  13. ^ a b c d e Haddad P, Haddad PM, Dursun S, Deakin B (2004). Adverse Syndromes and Psychiatric Drugs: A Clinical Guide. OUP Oxford. p. 207-216. ISBN 9780198527480.
  14. ^ Moncrieff J (July 2006). "Does antipsychotic withdrawal provoke psychosis? Review of the literature on rapid onset psychosis (supersensitivity psychosis) and withdrawal-related relapse". Acta Psychiatrica Scandinavica. 114 (1): 3–13. doi:10.1111/j.1600-0447.2006.00787.x. PMID 16774655. S2CID 6267180.
  15. ^ Sacchetti E, Vita A, Siracusano A, Fleischhacker W (2013). Adherence to Antipsychotics in Schizophrenia. Springer Science & Business Media. p. 85. ISBN 9788847026797.
  16. ^ National Institute of Mental Health. PDSD Ki Database (Internet) [cited 2013 Oct 3]. Chapel Hill (NC): University of North Carolina. 1998-2013. Available from: "PDSP Database - UNC". Archived from the original on 2013-11-08. Retrieved 2013-11-03.
  17. ^ Sweet RA, Pollock BG, Mulsant BH, Rosen J, Sorisio D, Kirshner M, et al. (April 2000). "Pharmacologic profile of perphenazine's metabolites". Journal of Clinical Psychopharmacology. 20 (2): 181–7. doi:10.1097/00004714-200004000-00010. PMID 10770456.
  18. ^ Parent M, Toussaint C, Gilson H (1983). "Long-term treatment of chronic psychotics with bromperidol decanoate: clinical and pharmacokinetic evaluation". Current Therapeutic Research. 34 (1): 1–6.
  19. ^ a b Jørgensen A, Overø KF (1980). "Clopenthixol and flupenthixol depot preparations in outpatient schizophrenics. III. Serum levels". Acta Psychiatrica Scandinavica. Supplementum. 279: 41–54. doi:10.1111/j.1600-0447.1980.tb07082.x. PMID 6931472.
  20. ^ a b Reynolds JE (1993). "Anxiolytic sedatives, hypnotics and neuroleptics.". Martindale: The Extra Pharmacopoeia (30th ed.). London: Pharmaceutical Press. pp. 364–623.
  21. ^ Ereshefsky L, Saklad SR, Jann MW, Davis CM, Richards A, Seidel DR (May 1984). "Future of depot neuroleptic therapy: pharmacokinetic and pharmacodynamic approaches". The Journal of Clinical Psychiatry. 45 (5 Pt 2): 50–9. PMID 6143748.
  22. ^ a b Curry SH, Whelpton R, de Schepper PJ, Vranckx S, Schiff AA (April 1979). "Kinetics of fluphenazine after fluphenazine dihydrochloride, enanthate and decanoate administration to man". British Journal of Clinical Pharmacology. 7 (4): 325–31. doi:10.1111/j.1365-2125.1979.tb00941.x. PMC 1429660. PMID 444352.
  23. ^ Young D, Ereshefsky L, Saklad SR, Jann MW, Garcia N (1984). Explaining the pharmacokinetics of fluphenazine through computer simulations. (Abstract.). 19th Annual Midyear Clinical Meeting of the American Society of Hospital Pharmacists. Dallas, Texas.
  24. ^ Janssen PA, Niemegeers CJ, Schellekens KH, Lenaerts FM, Verbruggen FJ, van Nueten JM, Marsboom RH, Hérin VV, Schaper WK (November 1970). "The pharmacology of fluspirilene (R 6218), a potent, long-acting and injectable neuroleptic drug". Arzneimittel-Forschung. 20 (11): 1689–98. PMID 4992598.
  25. ^ Beresford R, Ward A (January 1987). "Haloperidol decanoate. A preliminary review of its pharmacodynamic and pharmacokinetic properties and therapeutic use in psychosis". Drugs. 33 (1): 31–49. doi:10.2165/00003495-198733010-00002. PMID 3545764.
  26. ^ Reyntigens AJ, Heykants JJ, Woestenborghs RJ, Gelders YG, Aerts TJ (1982). "Pharmacokinetics of haloperidol decanoate. A 2-year follow-up". International Pharmacopsychiatry. 17 (4): 238–46. doi:10.1159/000468580. PMID 7185768.
  27. ^ Larsson M, Axelsson R, Forsman A (1984). "On the pharmacokinetics of perphenazine: a clinical study of perphenazine enanthate and decanoate". Current Therapeutic Research. 36 (6): 1071–88.
  28. ^ "Triptafen | Mind, the mental health charity - help for mental health problems". www.mind.org.uk. Retrieved 2017-03-19.
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