Potassium clavulanate cellulose (Potassium clavulanate:cellulose (1:1)) is a mixture of potassium clavulanate and cellulose, is a bacterial β-lactamase inhibitor. Potassium clavulanate with the combination of amoxicillin can be used for the research of different infections caused by bacteria, such as sinusitis, pneumonia, ear infections, bronchitis, urinary tract infections, and infections of the skin.