is a multinational Danish pharmaceutical company, founded in 1908, with a presence in about 100 countries. Its headquarters are in Ballerup, near Copenhagen[2] The company is 100% integrated into a private foundation owned by the LEO Foundation.[3] Leo Pharma develops and markets products for dermatology, bone remodeling thrombosis and coagulation.[4] In 1945 it was the first producer of penicillin outside the US and UK.


Formation & the 20th Century

In 1908, pharmacists August Kongsted and Anton Antons bought the Pharmacy in Copenhagen, Denmark. With the purchase, they established ‘Københavns Løveapoteks kemiske Fabrik’, today known as  LEO Pharma celebrated its centennial in 2008. Flags bearing the LEO logo were flying in every country where LEO products are available, more than a hundred flags in total. Today, LEO Pharma has an ever growing pipeline with over 4,800 specialists focusing on dermatology and thrombosis.

  • 1912 – The company launched its own Aspirin headache tablet
  • 1917 – The company exported Denmarks first drug, Digisolvin
  • 1940 – The company launched its own heparin product.
  • 1958-08-13 – Patent filed for bendrofluazide.[5]
  • 1962 – The company launched Fucidin to be used to treat staphylococcus infections

21st Century & onwards

In 2015, the company announced it would acquire Astellas Pharmas dermatology business for $725 million.[6]

In 2018, the company acquired Bayer’s dermatology unit for an undisclosed amount.[7]