Amoxicillin is primarily prescribed for the treatment of a range of bacterial infections that affect animals. These may include respiratory infections, skin infections, urinary tract infections, and gastrointestinal infections. The antibiotic works by inhibiting the synthesis of bacterial cell walls, ultimately leading to the destruction of the bacteria and the resolution of the infection. Its broad-spectrum action makes it effective against both Gram-positive and some Gram-negative bacteria, which are often implicated in infections seen in veterinary cases.