Perphenazine
Clinical data | |
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AHFS/Drugs.com | Monograph |
MedlinePlus | a682165 |
Pregnancy category |
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Drug class | Typical antipsychotic |
ATC code | |
Legal status | |
Legal status | |
Pharmacokinetic data | |
Bioavailability | 40% |
Metabolism | hepatic |
Elimination half-life | 8-12 (up to 20) hours |
Identifiers | |
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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
In low doses it is used to treat
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
Effectiveness
Perphenazine is used to treat psychosis (e.g. in people with
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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] | ||||||||||||||||||||||||||||||||||||
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Side effects
As a member of the phenothiazine type of antipsychotics, perphenazine shares in general all allergic and toxic side-effects of
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
The
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
Pharmacodynamics
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
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.
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 . Sources: Main: See template. |
Formulations
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
In many countries, depot forms of perphenazine exist (as
Interactions
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,
In general, all
Perphenazine may increase the
References
- FDA. Retrieved 22 Oct 2023.
- ^ 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.
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Withdrawal of antipsychotic drugs after long-term therapy should always be gradual and closely monitored to avoid the risk of acute withdrawal syndromes or rapid relapse.
- ^ ISBN 9780198527480.
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- ISBN 9788847026797.
- ^ 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.
- PMID 10770456.
- ^ 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.
- ^ PMID 6931472.
- ^ a b Reynolds JE (1993). "Anxiolytic sedatives, hypnotics and neuroleptics.". Martindale: The Extra Pharmacopoeia (30th ed.). London: Pharmaceutical Press. pp. 364–623.
- PMID 6143748.
- ^ PMID 444352.
- ^ 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.
- PMID 4992598.
- PMID 3545764.
- PMID 7185768.
- ^ 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.
- ^ "Triptafen | Mind, the mental health charity - help for mental health problems". www.mind.org.uk. Retrieved 2017-03-19.