Perrigo makes its name by making sure you never see it. One of the world's largest manufacturers of generic and private-label OTC (over-the-counter) pharmaceuticals and supplements, the company makes products that use similar packaging and discount pricing to compete with leading national brands. It makes more than 4,900 consumer products, including pain relievers, cough and cold remedies, digestive aids, animal health products, and smoking cessation products -- some of which are sold under its own Good Sense brand. It also makes about 800 generic prescription products, active pharmaceutical ingredients (APIs, or raw drug ingredients), and nutritional (dietary supplement, infant feeding) products.