What symptoms are typically present when evaluating for CNS Stimulants?

When assessing an individual under the influence of CNS stimulants, one of the hallmark indicators is the absence of Horizontal Gaze Nystagmus (HGN). HGN is a condition where the eyes exhibit involuntary movements when tracking a moving object, and it is typically seen with certain depressants and other drug classifications, but not with stimulants. This absence serves as a key differentiator when evaluating the effects of CNS stimulants on the central nervous system.

Individuals who have consumed CNS stimulants may display heightened alertness, increased energy, and other physical signs, but HGN does not align with their typical physiological response. Thus, when evaluating for CNS stimulants, a finding of no HGN is significant and supports the identification of stimulant use.