Abstract: An anthelmintic composition comprising two or more active agents, each agent being selected from a separate anthelmintically active family, the families being a macrocyclic lactone (ML), levamisole or its equivalent and a benzimidazole, in a suitable carrier, which includes at least one effective protective agent, which stabilises the chemical and physical activity of the ML, such as hydroxypropyl starch phosphate.

Abstract: The invention describes a composition suitable for oral administration comprising and antibiotic macrolide and a polycarbophil. The antibiotic macrolide is preferably clarithromycin. The polycarbophil is reported to have surprising taste-masking properties in combination with the antibiotic and acts by inhibiting the undesirable release of the antibiotic component in the mouth or stomach. Several methods of preparing granules of the antibiotic macrolide said polycarbophil are also described.