Phenothiazine
You don't need to be Editor-In-Chief to add or edit content to WikiDoc. You can begin to add to or edit text on this WikiDoc page by clicking on the edit button at the top of this page. Next enter or edit the information that you would like to appear here. Once you are done editing, scroll down and click the Save page button at the bottom of the page.
| Phenothiazine | |
|---|---|
| |
| |
| IUPAC name | 10H-phenothiazine |
| Other names | thiodiphenylamine, dibenzothiazine |
| Identifiers | |
| CAS number | |
| Properties | |
| Molecular formula | C12H9NS |
| Molar mass | 199.2762 g/mol |
| Appearance | yellow rhombic leaflets or
diamond-shaped plates |
| Density | ? g/cm3, solid at STP |
| Melting point |
185 °C |
| Boiling point |
371 °C |
| Solubility in other solvents | water, petroleum ether, chloroform |
| Acidity (pKa) | approx 23 in DMSO |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-525-6884
Please Take Over This Page and Apply to be Editor-In-Chief for this topic: There can be one or more than one Editor-In-Chief. You may also apply to be an Associate Editor-In-Chief of one of the subtopics below. Please mail us [2] to indicate your interest in serving either as an Editor-In-Chief of the entire topic or as an Associate Editor-In-Chief for a subtopic. Please be sure to attach your CV and or biographical sketch.
Synonyms and related keywords: Dibenzoparathiazine; Thiodiphenylamine; AFI-Tiazin; Agrazine; Antiverm; Biverm; Dibenzothiazine; Orimon; Lethelmin; Souframine; Nemazene; Vermitin; Padophene; Fenoverm; Phenovarm; Fentiazine; Contaverm; Fenothiazine, Ieeno; ENT 38; Helmetina; Helmetine, Penthazine; XL-50; Wurm-thional; Fentiazin; Padophene; Phenegic; Phenovis; Phenoxur; Reconox, Fenergan, Protazine; Thiergan
[1]
Overview
It is commonly used as an intermediate chemical in the manufacture of various antipsychotic neuroleptic psychotropic drugs. It originally was developed as a synthetic dye in 1883, [1] and it was introduced by DuPont as an insecticide in 1935.[1]
It is sometimes used as an antihelminthic in livestock. It is used as an industrial chemical in the manufacture of rubber additives.[1]
Phenothiazine pesticides work by affecting the nervous system of insects, inhibiting the breakdown of acetylcholine by disabling the enzyme acetylcholinesterase. Many of the side effects of phenothiazine neuroleptic antipsychotics are due to their anticholinergic blocking effects. [1]
Phenothiazine is also a potent alpha-adrenergic blocking agent.
Phenothiazine-derivative drugs
The term "phenothiazines" is used to describe the largest of the five main classes of neuroleptic antipsychotic drugs. These drugs have antipsychotic and, often, antiemetic properties, although they may also cause severe side effects such as akathisia, tardive dyskinesia, extrapyramidal symptoms, and the rare but potentially fatal neuroleptic malignant syndrome as well as substantial weight gain.
Phenothiazines are used as inodilators in congestive heart failure, acting upon the type I calcium/calmodulin dependent phosphodiesterase.[1]
The phenothiazine class of neuroleptic antipsychotic psychotropics are closely related to the thioxanthenes which are very similar pharmacologically.
There are three groups of phenothiazine antipsychotics, differing by their chemical structure and their pharmacological effects. They are the aliphatic compounds, the piperidines and piperazines. An aliphatic compound, piperidine or piperazine functional group is added to the phenothiazine molecule for the purpose of enhancing absorption and bioavailability of the phenothiazine chemical.
| Group | Autonomic | Example | Sedative | Extrapyramidal side-effect |
| Aliphatic compounds | ||||
| moderate | Chlorpromazine (marketed as Thorazine, Chlor-PZ, Klorazine, Promachlor, Promapar, Sonazine, Chlorprom, Chlor-Promanyl, Largactil) | strong | moderate | |
| Promazine (trade name Sparine) | moderate | moderate | ||
| Triflupromazine (trade names Stelazine, Clinazine, Novaflurazine, Pentazine, Terfluzine, Triflurin, Vesprin) | strong | moderate/strong | ||
| Levomepromazine in Germany and Methotrimeprazine in America (trade names Nozinan, Nozinan, Levoprome) | extremely strong | low | ||
| Piperidines | strong | Mesoridazine (trade name Serentil) | strong | weak |
| Thioridazine (trade names Mellaril, Novoridazine, Thioril) | strong | weak | ||
| Piperazines | weak | Fluphenazine (trade names Prolixin, Permitil, Modecate, Moditen) | weak/moderate | strong |
| Perphenazine (sold as Trilafon, Etrafon, Triavil, Phenazine, Etrafon) | weak/moderate | strong | ||
| Flupentixol (sold as Depixol, Fluanxol) | moderate | strong | ||
| Prochlorperazine (trade names Compazine, Stemetil) | ||||
| Trifluoperazine (trade name Stelazine) | moderate | strong |
References
Further reading
- Hendricks, Christensen, J.B., and Kristiansen, Jette E. Sonderborg, Denmark. "Antibakterielle Eigenschaften der Phenothiazine: Eine Behandlungsoption für die Zukunft?" Chemotherapie Journal. 13.5. (2004): 203–205. Wissenschaftliche Verlagsgesesellschaft mbH. 21 August 2005. (PDF).
- PubChem Substance Summary: Phenothiazine National Center for Biotechnology Information.
External links
de:Phenothiazinefr:Phénothiazines it:Fenotiazinesv:Tioridazin
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
