Although discussed for many years, systemic adverse effects from inhaled corticosteroid therapy remains a complicated and controversial topic. It is by now well-known that inhaled corticosteroids may affect growth, bone, and adrenal function, yet the clinical relevance and the risks for such adverse effects are poorly defined. Earlier intervention, use of higher doses, differing potency claims, and new inhalers also affect the potential for systemic effects following inhaled administration. Until further research better characterizes these risks and identifies appropriate monitoring, caution in the use of this highly effective therapy is advised.
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