From Longman Dictionary of Contemporary Englishmood-alteringˈmood-ˌaltering adjective [only before noun] mood-altering drugs or substances affect your mind and change the way you think or feel
Examples from the Corpus
mood-altering• Furthermore, because alcohol and other mood-altering chemicals are cross-addictive, we shall probably always have drug addiction as well.• In this respect, being under the spell of a leader is like being the influence of a powerful mood-altering drug.• Perhaps by making cannabis legal our society would imply progressive sanction to the use of any mood-altering drug.• It follows that careful monitoring of patients for their susceptibility to depression before prescribing mood-altering drugs would be a wise precaution.• Cannabis, when smoked, has to be inhaled very deeply to get its mood-altering effects.• All mood-altering substances or behaviours may be cross-addictive.• It is this disorder of the human spirit that leads the sufferer to seek mood-altering substances or behaviours. 