Drink & driving is prohibited in all EU countries. The driving under the influence of psychotropic substances or medicaments is forbidden.
The maximum permissible level of alcohol in the blood of the driver, in different EU countries varry. Some of the countries use different permissible level of alcohol in the blood of the driver, depending on the driving experience of the driver:
In case of violation of the dring and driving rule, the fine are really high and the penalties could be deprivation of a driver’s license for a certain period of time and even imprisonment (in some cases). See more on the country links below.
More information about the country specific traffic rules check here.