A method of treating atrial arrhythmia in a subject, the method comprises identifying atrial arrhythmia in a subject with the aid of an electronic monitoring device; aerosolizing a pharmaceutical composition in less than 3 minutes using a nebulizer, wherein the pharmaceutical composition comprises at least one antiarrhythmic; and administering the aerosolized pharmaceutical composition to the subject. Also claimed is a system comprising an electronic monitoring chip, wherein the electronic monitoring chip monitors incidence of arrhythmia in a subject when inserted into the subject; an electronic monitoring device; and a nebulizer, wherein the electronic monitoring device is in communication with the nebulizer.
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