Perrigo Company plc is an American Irish–registered manufacturer of private label over-the-counter pharmaceuticals, and while 70% of Perrigo's net sales are from the U.S. healthcare system, Perrigo is legally headquartered in Ireland for tax purposes, which accounts for 0.60% of net sales. In 2013, Perrigo completed the 6th-largest U.S. corporate tax inversion in history when it reregistered its tax status to Ireland to avoid U.S. corporate taxes.
Perrigo engages in the acquisition (for repricing), manufacture, and sale of consumer healthcare products, generic prescription drugs, and active pharmaceutical ingredients (APIs), primarily in the United States, from its base in Ireland. On 21 December 2018, Perrigo suffered its biggest one-day share price fall in its history after the Irish Revenue Commissioners issued a tax claim against Perrigo that equated to half of its market value.
The company operates in three segments; Consumer Self-care Americas, Rx Pharmaceuticals, and Consumer Self-Care International. The Consumer Self-care Americas segment produces over-the-counter pharmaceutical and nutritional products in the United States, the United Kingdom, and Mexico. This segment offers analgesic, cough/cold/allergy/sinus, gastrointestinal, smoking cessation, first aid, antacids, hemorrhoidal remedies, motion sickness, sleep aid products, feminine hygiene products, vitamin, and nutritional supplement products.
The Rx Pharmaceuticals segment produces generic prescription drugs in the United States. This segment provides creams, ointments, lotions, gels, and solutions, as well as nasal sprays, foams, and transdermal devices. Believing that Rx business has the potential to realize greater value outside of Perrigo, board okays separation of prescription pharma business on 9 August 2018.
The Consumer Self-Care International (CSCI) segment develops, manufactures, markets, and distributes well-known European self-care brands in the natural health and vitamins, cough, cold and allergy, oral care, smoking cessation, personal care and derma-therapeutics and lifestyle categories.