Pharmacotherapy of cough-variant asthma

Cough-variant asthma is considered as an asthma subset in which chronic cough is the only symptom. It is believed to be more frequent and, hence, sometimes overdiagnosed in children, and shares with typical asthma eosinophilic airway inflammation and consequent bronchial hyper-responsiveness. Presently available therapies consist of bronchodilators, inhaled or oral corticosteroids, or leukotriene modifiers. However, the long-term efficacy of these agents in adults and children is not known. This review focuses on current therapies used for cough variant asthma, also highlighting potential therapeutic targets for this condition.