Answer
Yes. Systemic gentamicin can reduce kidney function, often without early symptoms, which is why blood tests and urine-output review are important.
Sources for this answer
- NHSNHS · NHS medicine guidance
- Gentamicin 40mg/ml Solution for Injection/Infusion — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.