Alliance UniChem was a prominent pharmaceutical wholesaler and distributor based in the United Kingdom. Established in 2000, the company specialized in providing a wide range of healthcare products and services to pharmacies, hospitals, and healthcare providers. In 2006, Alliance UniChem merged with Walgreens, a major American pharmacy chain, to form Alliance Boots. This merger aimed to enhance the global reach and operational efficiency of both companies, allowing them to better serve their customers in the healthcare sector.