Little Yellow Duck Eye Wash is neither a class I nor a class II. According to the relevant public information, Little Yellow Duck Eye Wash is three kinds of products, which have been approved and put on the shelves in China. Category of drugs refers to drugs that have not been listed and sold at home and abroad, new drugs that have changed their route of administration and have not been listed and sold at home and abroad, and drugs that have been approved and sold on shelves in China.