Certain antibiotics (eg gentamycin, tetracycline) and certain medications (eg aspirin, diuretics, chemotherapy drugs) have the potential to injure kidneys to the point where the pet's BUN and creatinine levels rise. (2ndchance.info)
In severe cases only aerosolization bid for 3 days is effective, containing gentamycin sulfate (250 mg) or kanamycin sulfate (50 mg) diluted in 3 ml of normal saline. (dog-health-handbook.com)
For quantification of phagocytosis, alveolar macrophages were infected at an MOI of 20 for 1 h, then media was removed, extracellular bacteria were killed with gentamycin (200 μg / ml for 10 min at 37 C), and macrophages were lysed with 0.2 % triton X-100 (10 min at room temperature). (journals.plos.org)