Bacitracin is mainly known for its use as a topical triple antibiotic ointment---under the brand name Neosporin. It is also approved by the FDA for its use in chickens and turkeys as a medicated feed additive against certain infections caused by Gram-positive bacteria. However, when given internally, such as a feed additive, it is known for causing kidney damage.
Egg Withdrawal Period: In the United States and Australia, bacitracin is approved for use in laying poultry producing eggs intended for human consumption when its given in accordance with each product manufacturer s label directions; where it has a 0-day egg withdrawal period.