Gentamicin injection (Garamycin) is an antibiotic prescribed to treat bacterial infections of the respiratory tract, bone, skin and soft tissue, stomach, blood, and heart. Genticyn 80 MG Injection is an aminoglycoside antibiotic used for the short-term treatment of serious bacterial infections of the lungs, skin, abdomen, blood, brain, urinary tract, bones and joints. This injection kills or stops the growth of bacteria causing the infection. It is not effective against infections caused by viruses. Common side effects of Genticyn 80 MG Injection are pain at the injection site, skin rash, headache, weakness, and dizziness. Do not use this medicine if you are ... Gentamicin is an antibiotic used to treat many types of bacterial infections. It works by stopping the growth of bacteria. Learn about side effects, drug interactions, dosages, and more. Gentamicin injection is used to treat certain serious infections that are caused by bacteria such as meningitis (infection of the membranes that surround the brain and spinal cord) and infections of the blood, abdomen (stomach area), lungs, skin, bones, joints, and urinary tract. Gentamicin injection is in a class of medications called aminoglycoside antibiotics. It works by killing bacteria. Antibiotics such as gentamicin injection will not work for colds, flu, or other viral infections ...