Patent ID: 8362086

Claim:
A liquid long acting injectable formulation for combating ectoparasites and/or endoparasites in a mammal comprising: (a) a therapeutically effective amount of bioactive agent which comprises a combination of at least one of abamectin, doramectin, emamectin, eprinomectin, ivermectin, latidectin, lepimectin, selamectin, milbemectin, milbemycin D, milbemycin oxime, or moxidectin and clorsulon; (b) a subcutaneously volatile solvent or mixture of subcutaneously volatile solvent; (c) a biologically acceptable polymer, wherein the biologically acceptable polymer is present in an amount of up to 10%, and wherein said polymer is poly(lactic-co-glycolic) acid copolymer; (d) optionally, at least one pharmaceutically acceptable additive, excipient or mixtures thereof; and (e) an antioxidant.