GlaxoSmithKline LLC engages in discovering, developing, and delivering medicines, vaccines, and other healthcare products. It offers prescription medicines that treat various diseases, including cancer, HIV/AIDS, depression, diabetes, high blood pressure, herpes, asthma, migraine, and heart diseases, as well as stomach and skin problems, infections, and flu. It also provides vaccines for children and adults; and over-the-counter products. The company was founded in 1929 and is headquartered in Philadelphia, PA.