BDKRB2 and asthma: GCs are commonly used together with β2‐adrenoceptor (β2R) agonists, theophylline or anti‐leukotrienes, being the first one, the most effective combination.16 Due to its bronchodilator effect, it was suggested that the addition of β2R agonists may have complementary actions to GCs on the physiopathology of asthma.