Gentamicin (Gentamicin sulfate, Gentak, Genoptic) is a broad spectrum aminoglycoside antibiotic. It is used in the treatment of serious infections caused by Proteus species, E. coli, Klebsiella-Enterobactor-Serratia species, Citrobacter species, Staphylococcus species, and Pseudomonas aeruginosa.
Caution. This drug is nephrotoxic (toxic to the kidneys) at high doses and while the bird is receiving this drug they need to be kept well hydrated. Due to the potential toxic side effects, this drug should only be given to poultry with life-threatening infections and which are resistant to less toxic antibiotics or amikacin.