In dogs and rhesus monkeys, the major fecal metabolite, 7-hydroxyfluphenazine, was isolated and identified by mass spectrometric and NMR measurements, involving synthetic 7- and 8-hydroxyfluphenazines. 7-hydroxyfluphenazine is present in bile of treated dogs and rhesus monkeys as glucuronide.
Degradation of piperazine ring in fluphenazine in vivo leads to formation of gamma-(phenothiazinyl-10)-propylamine and of its ring substituted analogs CF3-gamma-(phenothiazinyl-10)-propylamine and C1-gamma-(phenothiazinyl-10)-propylamine.
Fluphenazine and its principal metabolites, fluphenazine sulfoxide, 7-hydroxyfluphenazine and fluphenazine conjugates were identified in human plasma, urine and feces, following im and oral administration of 25 mg of (14)C-fluphenazine dihydrochloride to patients.
Adult and newborn rats were treated with psychotropic drugs; neuroleptics (fluphenazine, benperidol, pimozide, thiotixen), an ataractic (oxazepam) and an anti- depressant (protriptyline) for periods up to one year or longer. The body weight was monitored, and brain weight, total cerebral lipid content, content of individual phospholipids, incorporation of (32)P into individual phospholipids, and the fatty acids composition of phosphatidylethanolamine were measured. The prolonged treatment with neuroleptics and an antidepressant, but not with oxazepam, produced profound, often biphasic or multiphasic changes in the biochemistry of phospholipids. These changes should be taken into account in discussion of the mechanism of action and side-effects of prolonged treatment with antidepressants and neuroleptics.
Fluphenazine blocks postsynaptic mesolimbic dopaminergic D1 and D2 receptors in the brain; depresses the release of hypothalamic and hypophyseal hormones and is believed to depress the reticular activating system thus affecting basal metabolism, body temperature, wakefulness, vasomotor tone, and emesis.
Liver test abnormalities have been reported to occur in up to 40% of patients on long term therapy with phenothiazines, but elevations are uncommonly above 3 times the upper limit of normal. The aminotransferase abnormalities are usually mild, asymptomatic and transient, reversing even with continuation of medication. Several instances of clinically apparent acute liver injury have been reported due to fluphenazine, which have resembled the liver injury caused by chlorpromazine and other phenothiazines. The onset of phenothiazide-related jaundice is usually within 1 to 4 weeks, and the pattern of serum enzyme elevations is typically cholestatic or mixed. Immunoallergic features (fever, rash and eosinophilia) are present in some cases, but they are usually mild and self-limited; autoantibodies are rare. Most importantly, phenothiazide induced jaundice can be prolonged and associated with vanishing bile duct syndrome. All phenothiazine antipsychotic agents are probably capable of causing cholestatic liver injury, but the frequency of hepatotoxicity appears to be far greater with chlorpromazine than with others such as fluphenazine.
Fluphenazine hydrochloride is rapidly absorbed from the GI tract and from parenteral sites. Following oral or im administration of fluphenazine hydrochloride, the onset of action usually occurs within 1 hour; the duration of action is 6-8 hours. Following administration of a single dose of fluphenazine hydrochloride in one limited study, peak serum fluphenazine concentrations were reached within 1.5-2 or 0.5 hours following im or oral administration, respectively.
Esterification of fluphenazine slows the rate of release of the drug from fatty tissues, thus prolonging the drug's duration of action; administration of the esters in a sesame oil vehicle further delays their rate of release. Following im administration of fluphenazine decanoate in sesame oil, the onset of action occurs within 24-72 hours; the duration of action is usually 1-6 weeks, with an average of 2 weeks.
The distribution and metabolic fate of fluphenazine have not been fully elucidated. Fluphenazine reportedly crosses the blood-brain barrier; radioactivity was present in CSF following im administration of radiolabeled fluphenazine decanoate in 2 individuals.
[EN] METHYL OXAZOLE OREXIN RECEPTOR ANTAGONISTS<br/>[FR] MÉTHYLOXAZOLES ANTAGONISTES DU RÉCEPTEUR DE L'OREXINE
申请人:MERCK SHARP & DOHME
公开号:WO2016089721A1
公开(公告)日:2016-06-09
The present invention is directed to methyl oxazole compounds which are antagonists of orexin receptors. The present invention is also directed to uses of the compounds described herein in the potential treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved. The present invention is also directed to compositions comprising these compounds. The present invention is also directed to uses of these compositions in the potential prevention or treatment of such diseases in which orexin receptors are involved.
Heterobicyclic compounds of Formula (I):
or a pharmaceutically-acceptable salt, tautomer, or stereoisomer thereof, as defined in the specification, and compositions containing them, and processes for preparing such compounds. Provided herein also are methods of treating disorders or diseases treatable by inhibition of PDE10, such as obesity, non-insulin dependent diabetes, schizophrenia, bipolar disorder, obsessive-compulsive disorder, Huntington's Disease, and the like.
Formula (I)的杂环化合物:
或其药用可接受的盐、互变异构体或立体异构体,如规范中所定义,并含有它们的组合物,以及制备这种化合物的方法。本文还提供了通过抑制PDE10来治疗由此可治疗的疾病或疾病的方法,如肥胖症、非胰岛素依赖型糖尿病、精神分裂症、躁郁症、强迫症、亨廷顿病等。
[EN] PHENOTHIAZINE DERIVATIVES AND USES THEREOF<br/>[FR] DÉRIVÉS DE PHÉNOTHIAZINE ET LEURS UTILISATIONS
申请人:CAMP4 THERAPEUTICS CORP
公开号:WO2019195789A1
公开(公告)日:2019-10-10
The present invention provides phenothiazine compounds, processes for their preparation, pharmaceutical compositions comprising the compounds, and the use of the compounds or the compositions in the treatment of various diseases or conditions, for example ribosomal disorders and ribosomopathies, e.g. Diamond Blackfan anemia (DBA).
[EN] NAPHTHALENE CARBOXAMIDE M1 RECEPTOR POSITIVE ALLOSTERIC MODULATORS<br/>[FR] COMPOSÉS DE NAPHTHALÈNE CARBOXAMIDE, MODULATEURS ALLOSTÉRIQUES POSITIFS DU RÉCEPTEUR M1
申请人:MERCK SHARP & DOHME
公开号:WO2011149801A1
公开(公告)日:2011-12-01
The present invention is directed to naphthalene carboxamide compounds of formula (I) which are M1 receptor positive allosteric modulators and that are useful in the treatment of diseases in which the M1 receptor is involved, such as Alzheimers disease, schizophrenia, pain or sleep disorders. The invention is also directed to pharmaceutical compositions comprising the compounds and to the use of the compounds and compositions in the treatment of diseases mediated by the M1 receptor.
The present invention provides macrocycles of formula (I) as PDE1 inhibitors and their use as a medicament, in particular for the treatment of neurodegenerative disorders and psychiatric disorders.