Long acting composition including a bioactive Agent, an aqueous Carrier, Castor Oil and at least one cyclic amide; Preparation method; use to prevent or treat a parasitic infection in an animal.

摘要

The present invention relates to a long-acting composition for the treatment of an animal in need thereof wherein the composition includes a therapeutically effective amount of a bioactive agent, characterized in that the composition includes a non-aqueous carrier and a solvent system comprising castor oil and at least one cyclic amide.