adrenergic bronchodilators

ad·re·ner·gic bron·cho·di·la·tors

(ad'rĕ-nĕr'jik brong'kō-dī'lā-tŏrz) A class of sympathomimetic drugs that act by stimulating receptors in the bronchi and other organs, producing smooth muscle relaxation. They are classified into three groups: alpha-adrenergic, beta1-adrenergic, and beta2-adrenergic bronchodilators.