... bacteria that are susceptible to amoxycillin. Do not use in animals with a history of hypersensitivity towards penicillins ... and cephalosporins. Do not use in small rodents (Guinea pigs, hamsters, gerbils, rabbits) ... -negative bacteria, spirochetes (e.g.Treponema hyodysenteriae), and mycoplasma. Horses, camels, cattle, sheep, goats, pigs, dogs, cats, ...