It is forbidden to drive whilst under the influence of any type of drug that impairs performance. There are no rules concerning specific type of drugs.
The information on this website according to Article 8(1) of the road safety directive (Directive 2011/82/EU) is provided by the national authorities in the country concerned. In the event of any conflict between the provided data and the rules in effect in a given country, the latter take precedence. The data are meant purely as a documentation tool and the Commission does not assume any liability for their content or their accuracy.