Shire plc, a specialty biopharmaceutical company operates in three segments: Specialty Pharmaceuticals (SP), Human Genetic Therapies (HGT), and Regenerative Medicine (RM). The SP segment offers products for the treatment of attention deficit and hyperactivity disorder (ADHD), including VYVANSE/VENVANSE, a pro-drug stimulant; INTUNIV, an alpha-2A receptor agonist; EQUASYM, a methylphenidate hydrochloride; and ADDERALL XR, an extended release treatment for ADHD. It also produces PENTASA and LIALDA/MEZAVANT for the treatment of ulcerative colitis; and RESOLOR, a 5-HT4 receptor agonist for oral symptomatic treatment of chronic constipation in women. In addition, this segment provides FOSRENOL, a phosphate binder for use in end-stage renal failure patients receiving dialysis; and XAGRID for the reduction of elevated platelet counts in at-risk essential thrombocythemia patients, as well as for the treatment of thrombocythemia. The HGT segment offers REPLAGAL for the treatment of Fabry disease; ELAPRASE for the treatment of hunter syndrome; VPRIV for the treatment of type 1 Gaucher disease; and FIRAZYR for the symptomatic treatment of acute attacks of hereditary angioedema. The RM segment provides DERMAGRAFT, a bio-engineered skin substitute that assists in restoring damaged tissue. The company also licenses its patented antiviral products for human immunodeficiency virus and hepatitis B virus. In addition, it is developing various products in the areas of behavioral health, gastrointestinal, HGT, RM, and other therapeutic areas. The company markets its products directly to government hospitals, clinics, pharmacies, and other agencies; and through wholesalers and distributors. It has operations in North America, the United Kingdom, the Republic of Ireland, and internationally. Shire plc was founded in 1986 and is headquartered in Dublin, Ireland.