What is a common sign of upper drug use in terms of reflexes?

The presence of +4 reflexes is indicative of hyperreflexia, which is commonly associated with the use of stimulant drugs, often referred to as "uppers." Stimulants increase the excitability of the nervous system, leading to exaggerated reflex responses. This is a typical physiological response to such substances as amphetamines or cocaine, where the central nervous system is overstimulated.

Hyperreflexia can manifest as brisk and exaggerated reflexes when tested with deep tendon reflexes (like the knee-jerk reflex), which is a clear sign of increased neural activity. In the context of upper drug use, this heightened reflex activity stands out as a key indicator of their pharmacological effects on the nervous system. Understanding that +4 reflexes are linked to these stimulants helps healthcare providers assess and manage potential drug use in patients effectively.