A simple reversed phase high performance liquid chromatographic method with diode array detector (HPLC-DAD) has been developed and subsequently validated for the determination of fexofenadine hydrochloride (FEX) and its related compounds; keto fexofenadine (Impurity A), meta isomer of fexofenadine (Impurity B), methyl ester of fexofenadine (Impurity C) in addition to the methyl ester of ketofex...

Aphthous ulcers are the most prevalent oral mucosal lesions, yet treatment is challenging. There evidence that montelukast efficacious in treating aphthous ulcers. A randomized placebo-controlled trial comparing against prednisone for recurrent stomatitis demonstrated has superior efficacy compared with placebo, decreased prednisone, but adverse effects to prednisone. Our single-center, retrosp...

INTRODUCTION Uremic pruritus is one of the most common disabling symptoms in patients with end-stage renal disease. We aimed to study the effect of montelukast sodium for the treatment of uremic pruritus lasting more than 3 months in patients undergoing hemodialysis and compare it with placebo. METHODS AND MATERIALS Eighty patients undergoing hemodialysis at 3 centers in Shiraz, Iran, were re...

A simple, rapid, accurate, precise and economical reverse phase high performance liquid chromato graphic method has been developed for simultaneous estimation of Doxophylline and Montelukast sodium. The separation of drugs was achieved on Inertsil Ph-3 column (250 mmx4.6 mm id, 5 μm particle size) with mobile phase of Ammonium acetate 0.05milimolar and Glacial acetic acid buffer (pH 3.5): Metha...

Quantitative image analysis of high-resolution computed tomography (HRCT) performed at residual volume, before and after methacholine, is a sensitive method of detecting small airways involvement in asthma and response to therapy targeted to the small airways. Since an oral anti-leukotriene reaches the small airways via the circulation, the present authors hypothesised that treatment with monte...

The PREVIA study was designed to investigate the role of montelukast, a leukotriene receptor antagonist, in the prevention of viral-induced asthma exacerbations in children aged 2 to 5 years with a history of intermittent asthma symptoms. The study was a 12-month multicenter, double-blind, parallel-group study of patients with asthma exacerbations associated with respiratory infections and mini...

the leukotrienes and prostaglandins are biologically active metabolites derived from arachidonic acid. the leukotrienes have a role in inflammatory diseases such as allergic rhinitis, inflammatory bowel disease and asthma. montelukast, a cysteinyl leukotriene receptor antagonist, is claimed to be effective in asthma. the present study aimed to assess the role of cysteinyl leukotriene receptor a...

BACKGROUND Inhaled corticosteroids (ICS) affect many inflammatory pathways in asthma but have little impact on cysteinyl leukotrienes. This may partly explain persistent airway inflammation during chronic ICS treatment and failure to achieve adequate asthma control in some patients. This double blind, randomised, parallel group, non-inferiority, multicentre 16 week study compared the clinical b...

BACKGROUND Montelukast is a leukotriene receptor antagonist for treatment of asthma, gliclazide is an oral hypoglycemic antidiabetic agent, and nifedipine is a calcium channel blocker used for treatment of angina pectoris and hypertension. These drugs may be prescribed to patients suffering from these chronic diseases. A survey of the literature reveals that there is no reported method for the ...

BACKGROUND Exercise induced bronchoconstriction (EIB) is common in elite athletes. Eucapnic voluntary hyperventilation (EVH) is a laboratory test recommended for the identification of EIB in athletes, secondary to a field exercise challenge. Montelukast attenuates EIB, but its protective effect against airway narrowing from EVH has not been investigated. OBJECTIVE To examine the effectiveness...