Categoria
Zafirlukast
Nombres de marca,
Zafirlukast
Analogos
Zafirlukast
Marca los nombres de mezcla
No information avaliable
Zafirlukast
Formula quimica
C31H33N3O6S
Zafirlukast
RX enlace
http://www.rxlist.com/cgi/generic/zafirlukast.htm
Zafirlukast
FDA hoja
Zafirlukast
MSDS (hoja de seguridad de materiales)
Zafirlukast
Sintesis de referencia
FJ Brown et al. Eur. pat. Appl. 199543, PR Bernstein et al, Patente de EE.UU... 4.859.692 (1986, 1989, tanto a ICI)
Zafirlukast
Peso molecular
575.676 g/mol
Zafirlukast
Punto de fusion
139 oC
Zafirlukast
H2O Solubilidad
No hay información disponible
Zafirlukast
Estado
Solid
Zafirlukast
LogP
5.787
Zafirlukast
Formas de dosificacion
Tableta
Zafirlukast
Indicacion
Para la profilaxis y tratamiento crónico del asma.
Zafirlukast
Farmacologia
Zafirlukast es un sintético, leucotrienos selectivo antagonista del receptor péptido (ARLT) indicado para la profilaxis y el tratamiento crónico del asma. Los pacientes con asma se encontraron en un estudio en 25 - 100 veces más sensibles a la actividad broncoconstrictores del LTD4 inhalado que los sujetos no asmáticos. En estudios in vitro han demostrado que zafirlukast antagonizado la actividad contráctil de los tres leucotrienos (LTC4, LTD4 y LTE4) en la realización de músculo liso bronquial de los animales de laboratorio y seres humanos. Zafirlukast impedido intradérmica LTD4 inducida por el aumento de la permeabilidad vascular cutánea e inhibe la inhalación de LTD4 inducida por la afluencia de eosinófilos en los pulmones del animal.
Zafirlukast
Absorcion
Absorbe rápidamente tras su administración oral, reduce tras una comida rica en grasa o proteínas.
Zafirlukast
Toxicidad
Los efectos secundarios incluyen sarpullido y malestar estomacal.
Zafirlukast
Informacion de Pacientes
Patients should be told that a rare side effect of ACCOLATE is hepatic dysfunction, and to contact their physician
immediately if they experience symptoms of hepatic dysfunction (eg. right upper quadrant abdominal pain, nausea,
fatigue, lethargy, pruritus, jaundice, flu-like symptoms, and anorexia). Liver failure resulting in liver
transplantation and death has occurred in patients taking zafirlukast .
ACCOLATE is indicated for the chronic treatment of asthma and should be taken regularly as prescribed, even during
symptom-free periods. ACCOLATE is not a bronchodilator and should not be used to treat acute episodes of asthma.
Patients receiving ACCOLATE should be instructed not to decrease the dose or stop taking any other antiasthma
medications unless instructed by a physician. Women who are breast-feeding should be instructed not to take ACCOLATE.
Alternative antiasthma medication should be considered in such patients.
The bioavailability of ACCOLATE may be decreased when taken with food. Patients should be instructed to take
ACCOLATE at least 1 hour before or 2 hours after meals.
Eosinophilic Conditions: In rare cases, patients on ACCOLATE therapy may present with systemic
eosinophilia, eosinophilic pneumonia, or clinical features of vasculitis consistent with Churg-Strauss syndrome, a
condition which is often treated with systemic steroid therapy. These events usually, but not always, have been
associated with the reduction of oral steroid therapy. Physicians should be alert to eosinophilia, vasculitic rash,
worsening pulmonary symptoms, cardiac complications, and/or neuropathy presenting in their patients. A causal
association between ACCOLATE and these underlying conditions has not been established .
Zafirlukast
Organismos afectados
Humanos y otros mamíferos