A double blind placebo controlled study on the use of ketotifen in childhood asthma.
D001249:Asthma / Q000188:drug therapy*; D002648:Child; D002675:Child, Preschool; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007665:Ketotifen / Q000627:therapeutic use*; D008297:Male; D010919:Placebos
D010919:Placebos; D007665:Ketotifen