The two cough drop brands that can be found in the crossword are Ludens (6 letters) and Halls (5 letters). Ludens is a brand of cough drops that was first introduced in the United States in the 1950s. They are known for their distinctive packaging, which features a smiling boy wearing a cowboy hat. Halls is a brand of cough drops that has been around since the 1930s. They are known for their menthol flavor and come in a variety of flavors.