Ketotifen in atopic asthma and exercise-induced asthma.

Ketotifen in atopic asthma and exercise-induced asthma.

The efficacy of ketotifen, a tricyclic benzocycloheptathiophene derivative, was assessed in an outpatient clinical trial and in a group of 12 asthmatic subjects with exercise-induced asthma. Subjects in the outpatient trial had mild asthma and consisted of two groups: a group of 24 atopic asthmatics with at least one positive skin test reaction and with an associated history of bronchial reacti...

Ketotifen and nocturnal asthma.

Patients with asthma often wheeze at night and they also become hypoxic during sleep. To determine whether ketotifen, a drug with sedative properties, is safe for use at night in patients with asthma, we performed a double blind crossover study comparing the effects of a single 1 mg dose of ketotifen and of placebo on arterial oxygen saturation (SaO2), breathing patterns, electroencephalographi...

Ketotifen in adult asthma.

The efficacy and adverse effects of ketotifen 1 mg twice daily and 2 mg twice daily were compared with placebo in 50 patients with atopic asthma in a multicentre, double-blind study. Ketotifen in the higher dosage caused a slight reduction in salbutamol usage and a modest improvement in breathing in patients not already receiving inhaled corticosteroids. The drug was ineffective in patients rec...

Comparison of actions of disodium cromoglycate and ketotifen on exercise-induced bronchoconstriction in childhood asthma.

Ketotifen (Zaditen), a benzocycloheptathiophene derivative, is a new oral agent for treating asthma, with action similar in some respects to that of sodium cromoglycate. It is well established that sodium cromoglycate protects against antigen challenge by inhibiting the release of chemical mediators from mast cells. It also inhibits exerciseinduced bronchoconstriction and has bronchodilator pro...

Exercise-induced asthma: the "silent asthma".