Objectives: This paper examines changes in alcohol-related harm in Denmark between 2003 and 2005 after changes in alcohol policies were introduced between 2003 and 2005. Methods: Interrupted time series analysis was performed with data on violent assaults and hospitalisations for acute alcohol intoxication from 2003 through 2005. Results: A 26% increase in the number of acute alcohol intoxication hospitalisations among people aged 15 years and younger was detected after the tax reduction on spirits. No significant increase in violent assaults and acute intoxication among adults was found. Conclusions: Even modest alcohol price policies can affect more vulnerable population sub-groups such as under-age youth. Policy makers should consider such consequences when forming economic policies that also have public health implications.