Telegraph.co.uk | GSK drug halves attacks in hard-to-treat asthma Reuters India "It seems to be a safe and effective treatment option for patients with eosinophilic asthma that is associated with frequent flare-ups, and may reduce the need for conventional treatment with oral corticosteroids that can have serious side effects ... Mepolizumab almost halves exacerbations in patients with severe asthma Glaxo's Experimental Drug Halves Asthma Attacks in Study |