Schaer Pharma is owned by the family of Michel Schaer.
1989 Foundation of Tentan AG, Ramlinsburg
1998 Acquisition of OTC Pharma AG
2002 Takeover of Ars Vitae AG
2007 Takeover Kräuter-Pfarrer-Künzle AG
2008 Takeover of Eduard Vogt AG
2008 Construction of a new company building in Itingen, BL
2009 Completion of the company building and relocation (May)
2009 Foundation of Tentan Deutschland GmbH and Tentan Hongkong Ltd.
2009 Renaming from OTC Pharma to Medicoss AG
2010 Foundation of Tentan UK Ltd.
2012 Acquisition of New Care AG
2020 Simplification of the company structure. Ars Vitae AG and Eduard Vogt AG were integrated into the other companies.
2021 The company Kräuter Pfarrer Künzle AG is integrated into the company Tentan AG.