Perrigo is the largest store-brand over-the-counter pharmaceutical and infant formula manufacturer. The company operates three major segments: consumer healthcare, branded consumer healthcare, and prescription pharmaceuticals. As of mid-2018, Perrigo plans to divest the prescription segment. In the United States, Perrigo sells about 2,100 products with 9,000 stock-keeping units. Following the acquisition of Omega Pharma, approximately 30% of the company's revenue comes from outside the U.S.