Uses of neo myxidine drops for eyes and ears as an antibacterial. neo myxidine drops are an antibiotic that helps eliminate Gram-negative bacteria. It binds to the cell membrane and changes its structure, which leads to increased permeability and the entry of water into the cell and its death. neo myxidine drops contain gramicidin, neomycin, and polymyxin, which is a mixture of three antibiotics made from soil bacteria and used topically Ingredients of neo myxidine drops neo myxidine drops contain gramicidin, neomycin, and polymyxin, which is a mixture of three antibiotics made from soil bacteria and used topically, which helps in eliminating gram-negative bacteria. It binds to the cell membrane and changes its composition, which leads to increased permeability and the entry of water into the cell and its death.