On 17 May 2009 the Swiss people voted in favour of a constitutional article for complementary medicine in a national vote. 67 percent of voters supported the new constitutional article. Switzerland is the first country in Europe to set out in the constitution, authority for the state and constituent states (cantons) to take complementary medicine into consideration in the public health service.
Over the last few years complementary medicine has been politically marginalized in Switzerland. Therefore, the complementary medicine sector, including doctors, therapists, manufacturers and specialized traders, together launched and brought about a national popular initiative. This enabled Swiss voters to obtain a referendum for a constitutional amendment if they collected 100,000 valid signatures within 18 months.