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. 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. It can cause deafness and kidney disease.