A new study published recently in The Lancet reveals that one of the most commonly used asthma medicines -- long-acting beta-agonists -- may not be associated with adverse events in people based on their genotype (gene variation), as previous studies had shown. The study analyzed the effects of long-acting beta-agonist therapy, used in combination with inhaled corticosteroids, in asthmatics who have a specific beta-2 adrenergic receptor (ADRB2) genotype.
