R03CAdrenergics For Systemic Use↑ R03SubgroupsAlpha- and beta-adrenoreceptor agonistsR03CANon-selective beta-adrenoreceptor agonistsR03CBSelective beta-2-adrenoreceptor agonistsR03CCAdrenergics and other drugs for obstructive airway diseasesR03CKSubstancesformoterolR03CC15fenoterolR03CC04terbutalineR03CC03hexoprenalineR03CC05metaproterenolR03CB03