Can be given to children less than 40 kilograms in weight; for children heavier, the dosage is same as adults, twice daily.[12] The second component reduces the effectiveness of some forms of bacterial resistance to the first component Ampicillin/sulbactam Unasyn Piperacillin/tazobactam Zosyn Ticarcillin/clavulanate Timentin Polypeptides Bacitracin Eye, ear or bladder infections; usually applied directly to the eye or inhaled into the lungs; rarely given by injection, although the use of intravenous colistin is experiencing a resurgence due to the emergence of multi drug resistant organisms.