GlaxoSmithKline plc engages in the creation, discovery, development, manufacture, and marketing of pharmaceutical products,vaccines, over-the-counter medicines, and health-related consumer products. It operates through four segments: Pharmaceuticals, Pharmaceuticals R&D, Vaccines, and Consumer Healthcare. The company offers pharmaceutical products comprising medicines in the therapeutic areas such as respiratory, HIV, immuno-inflammation, oncology, anti-viral, central nervous system, cardiovascular and urogenital.