Switching asthma patients from twice-daily inhaled corticosteroids to a once-daily formulation could conceivably lead to improved compliance that would save the Canadian economy > $Can100 million/year*in healthcare costs, a Canadian health economist claims. According to Dr Robert Coambs, an economic investigator who heads the Centre for Health Promotion, a think-tank affiliated with the University of Toronto, acute asthma attacks are the single greatest reason for hospital emergency-room admissions in Canada. 20% of those attacks are caused by patients not using their medications as prescribed.