Some patients may experience side effects when using ipratropium bromide nebulizer, especially in overdose, which may cause allergic reactions, skin urticaria, itching, angioneurotic edema, and possibly aggravate bronchospasm, cause pharyngeal edema, and in severe cases may cause asphyxia. Patients who also have some underlying diseases themselves, such as diabetes, myocardial infarction, thyroid function, hyperthyroidism, glaucoma, and prostate hypertrophy, may make the disease more severe with this drug. This drug is a nebulizer, mainly a cholinergic receptor blocker, which can reduce the symptoms of wheezing and shortness of breath caused by bronchial asthma, emphysema, etc.