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Brachytherapy (HDR & LDR) Brachytherapy is a method of delivering radiation to tumors by placing radioactive sources either within or immediately adjacent to tumor tissue. Because the radiation source is very close to the tumor, therapeutic radiation can affect the tumor directly while minimally affecting normal tissue. Brachytherapy can be provided using low dose rate (LDR) or high dose rate (HDR) techniques, depending on the length of time the radioactive sources remain in place.
Ipratropium Bromide. Ipratropium bromide is another type of bronchodilator that can be delivered with a nebulizer for relief of asthma flareups. It works by decreasing constriction of the muscle cells of the lung airways, but acts differently than albuterol and levalbuterol.