Zafirlukast - za-FIR-loo-kast is using by diseaseds with mild-to-moderate asthma to decrease the symptoms of asthma and the number of acute asthma attacks. However, this drug must not be using to relieve an asthma attack that has already started.
This drug is available only with your family doctor's prescription, in the following dosage form:
Some commonly using brand names are:
In the USA
† Not commercially available in Canada.