Perrigo Company plc, through its subsidiaries, develops, manufactures, and markets over-the-counter (OTC) consumer goods and pharmaceutical products worldwide. The company operates through Consumer Healthcare (CHC), Branded Consumer Healthcare (BCH), Prescription Pharmaceuticals (Rx Pharmaceuticals), Specialty Sciences, and Other segments. The CHC segment offers OTC products, including analgesics, cough/cold/allergy/sinus, gastrointestinal, infant nutritional, smoking cessation, animal health, feminine hygiene, diabetes and dermatological care, diagnostic, and other healthcare products, as well as vitamins, minerals, and dietary supplements; and contract manufacturing services. It serves retail drug, supermarket, mass merchandise chains, and wholesalers through sales force and industry brokers. The BCH segment provides branded OTC products in the natural health; vitamins, minerals, and supplements; cough, cold, and allergy; personal care and derma-therapeutics; lifestyle; and anti-parasite areas. This segment serves pharmacies, drug, and grocery stores through pharmacy sales force, as well as a network of pharmacists. The Rx Pharmaceuticals segment offers generic and specialty pharmaceutical prescription drugs in various dosage forms, such as creams, ointments, lotions, gels, shampoos, foams, suppositories, sprays, liquids, suspensions, solutions, powders, controlled substances, injectables, hormones, women's health products, oral solid dosage forms, and oral liquid formulations; and ORx products. It serves wholesalers; retail drug, supermarket, and mass merchandise chains; hospitals; and pharmacies. The Specialty Sciences segment provides Tysabri to treat multiple sclerosis. The Other segment offers active pharmaceutical ingredients that are used by generic and branded pharmaceutical companies. The company was founded in 1887 and is headquartered in Dublin, Ireland.