Can the combination boric acid-nystatin be in a veterinary ear suspension? Complex formation?

This formula shows the presence of an amino and carboxyl group. The first one can react with boric acid, while the second can react with borax. In the patent literature is spoken of a nystatin borate complex, which is formed in methanol. The occurrence or failure of these reactions will depend to a significant extent on the solvent. You do not give me any information about the vehicle you wish to use.