Graves'-Basedow's disease--asthma association. Presentation of five cases.

Thyroid hormones have a non-selective permissive action on adrenergic receptors (including beta 2). Asthma is an immune disease in which some pathological pathways include beta 2 adrenergic receptor blockade. In theoretical terms, that would mean that in hyperthyroidism asthma would ameliorate.