Gentamicin can harm your kidneys. This effect is increased when you also use certain other medicines, including: antivirals, chemotherapy, injected antibiotics, medicine for bowel disorders, medicine to prevent organ transplant rejection, injectable osteoporosis medication, and some pain or arthritis medicines (including aspirin, Tylenol, Advil, and Aleve).
Tell your doctor about all your current medicines and any you start or stop using, especially:
a diuretic or "water pill"; or
any other antibiotic.
This list is not complete. Other drugs may interact with gentamicin, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.
 Gentamicin drug interactions (more detail)
