Clavamox (Amoxicillin/Clavulanic Acid) is a combination antibiotic medication containing amoxicillin and clavulanic acid that is commonly used in veterinary medicine for both cats and dogs. It is used to treat a variety of bacterial infections including skin, respiratory, urinary tract, and gastrointestinal infections. The combination of amoxicillin and clavulanic acid helps to extend the spectrum of coverage against certain bacteria that may have developed resistance to amoxicillin alone.