Before starting treatment with AccuNeb nebulizer, the doctor should be informed about the patient’s:, Prescription and nonprescription medications, Allergies, Past medical history and current health problems, Pregnancy or breastfeeding status, AccuNeb may cause worsened tightening and swelling of the airway muscles. Emergency care should be sought immediately if this occurs., Serious allergic reactions can occur. Prescription and nonprescription medications, Allergies, Past medical history and current health problems, Pregnancy or breastfeeding status