The only time you'll see PharMerica's products is when a nurse hands you a pill in a paper cup. As the country's second-largest institutional pharmacy operator (behind Omnicare), the firm provides purchasing, packaging, and dispensing of drugs to hospitals, nursing homes, assisted living facilities, and other long-term care settings. PharMerica operates about 100 institutional pharmacies, including 15 focused on infusion therapies and five for oncology medications, from which it packages and delivers medications in unit doses (rather than in bulk) to customers in 45 states. It also provides consulting and monitoring services of drug usage to help care facilities comply with government regulations.