Most students say that drugs at Cornell are not a problem and that what little problems exist stay underground. Everyone will most likely meet your stereotypical pot head, and that's probably the most common drug-related issue you'll find here. Some students also use amphetamines and prescription drugs like Ritalin to stay up for late-night cramming sessions.
Although drugs are by no means prominent on campus, some say that if you want them, they're easy to find. Fortunately, there isn't a lot of pressure to get involved in drug use, and Cornell has much less of a problem than many other schools. Students tend to agree that they have never witnessed an obvious drug culture at school.