Can garamycin cause a stomach virus?
No, likely upset
Garamycin (gentamicin) is gentamycin an antibiotic which may cause, nausea, upset stomach and possibly diarrhea, similar symptoms as a viral abdominal infection (gastroenteritis).
These symptoms may subside after few days, and should be discussed with your provider if continued.
STOMACH FLU (VIRAL GASTROENTERITIS)