Par Pharmaceutical Companies, Inc., through its subsidiary, Par Pharmaceutical, Inc. engages in the development, manufacture, and distribution of generic and branded drugs in the United States. Its principal generic products include Metoprolol succinate ER, Sumatriptan succinate injection, Meclizine Hydrochloride, Clonidine TDS, Dronabinol, Cabergoline, Propranolol HCl ER, Cholestyramine Powder, Methimazole, Megestrol oral suspension, Tramadol HCl and acetaminophen tablets, Fluticasone, Ibuprofen Rx, and various amoxicillin products. The company offers its drugs in solid oral dosage forms, such as tablets, caplets, and two-piece hard-shell capsules; oral suspension products; nasal spray products; products delivered by injection; and products in the semi-solid form of a cream and a transdermal patch. Its brand products include Megace ES drugs for the treatment of anorexia, cachexia, or any unexplained significant weight loss in patients with a diagnosis of AIDS; Nascobal Nasal Spray, a prescription vitamin B12 treatment indicated for maintenance of remission in certain pernicious anemia patients, as well as a supplement for various B12 deficiencies; and Androgel, a testosterone gel indicated for replacement therapy in males for conditions associated with a deficiency or absence of endogenous testosterone. Par Pharmaceutical plans to launch Zuplenz, an oral soluble thin film formulation for the prevention of chemotherapy induced nausea and vomiting, and post-operative nausea and vomiting; and Oravig, a miconozole antifungal therapy for the treatment of oropharyngeal candidiasis. It markets its products to wholesalers, drug store chains, supermarket chains, mass merchandisers, distributors, managed health care organizations, mail order accounts, drug distributors, nursing homes, hospitals, clinics, government agencies, and pharmacy benefit management companies. The company was founded in 1978 and is based in Woodcliff Lake, New Jersey.