Nonaspirin packets are specially packaged to refill the Acme Xpress First Aid Kit (sold separately) and are part of the Xpress First Aid Refill System. The refill system is a unique color-coded system that simplifies first aid and makes it easy to keep the kit organized and find what you need quickly. The starter kit and other refills are sold separately. Nonaspirin (Acetaminophen) acts as a pain reliever and fever reducer. Tablets do not contain aspirin. Individual dose packets are tamper-evident. Refill system makes ANSI/OSHA compliance easy.