Which symptom is NOT associated with narcotic depressants?

Narcotic depressants, also known as opioids, generally produce a range of physiological and psychological effects on the user, which typically include feelings of euphoria, constriction of the pupils, and a slowing of respiratory functions and reflexes.

The symptom of increased activity levels is not associated with narcotic depressants. In fact, these substances tend to cause sedation and decreased motor activity rather than stimulation. Users often experience a sense of relaxation and drowsiness, which can lead to reduced physical activity. Thus, the presence of increased activity levels contradicts the fundamental effects of narcotic depressants on the central nervous system.