McKesson is a leading healthcare company based in the United States, primarily involved in the distribution of pharmaceuticals and medical supplies. Founded in 1833, it has grown to become one of the largest healthcare companies in the world, serving hospitals, pharmacies, and other healthcare providers. In addition to distribution, McKesson offers various healthcare management solutions and technology services. The company plays a crucial role in improving patient care by ensuring that medications and medical products are delivered efficiently and safely to healthcare facilities across the country.