The difference between ipratropium bromide 500 mcg and 250 mcg is the difference in dosage, specification and concentration. Ipratropium bromide solution 250 mcg and 500 mcg is usually used with an inhalation device, by inhalation. In addition to the differences in dosage and specifications, there are also differences in concentration. The concentration of ipratropium bromide 500 mcg is relatively low and is suitable for use in children, and the exact dosage should be prescribed by the doctor. Isopropyltropium bromide is a bronchodilator, can be used to treat coughing and wheezing caused by chronic wheezing bronchitis, and can also be used for the maintenance treatment of chronic obstructive pulmonary disease, including chronic bronchitis and emphysema. Adverse reactions to ipratropium bromide include dry mouth, tachycardia, palpitations (rapid heartbeat, often accompanied by panic), headache, nausea, ocular dysregulation, gastrointestinal dyskinesia, and urinary retention. Ipratropium bromide is contraindicated in people who are allergic to soy and peanuts. PrecautionsThis product should be used with caution in patients with prostatic hyperplasia or bladder cancer neck obstruction. Ipratropium bromide is a prescription drug, in order to ensure the safety of medication, please follow the doctor’s instructions.