Cross sectional study whose objective was to establish the patterns of simultaneous poly-drug use among students in undergraduate medical and nursing careers, at a university in Santiago - Chile. A sample of 188 students was studied. Results: 42.3% of students refered simultaneous poly-drug use, average age of onset of 16 years; most common combinations were alcohol + tobacco + marijuana and tobacco + alcohol with prescription drugs. They learn about drug combinations through friends, consume in mixed groups outside the university (nightclubs) and do it to relax or enjoy the company of friends. It is essential to develop comprehensive strategies in order to improve the health of this population of youngsters, who will be responsible for the health of future generations.
Students; Street drugs; Behavior addictive; Substance-Related disorders; Risk factors
