Hand tremors and psychomotor agitation are common signs of withdrawal from which category of substances?

• A. Stimulants
• B. Opiates
• C. Sedatives
• D. Hallucinogens

Answer: (C)

Hand tremors and psychomotor agitation are symptoms often associated with withdrawal from sedatives, particularly benzodiazepines and barbiturates. This occurs because sedatives act on the central nervous system to depress its activity. When a person who has been using these substances for a prolonged period suddenly reduces or stops intake, the body can experience a rebound effect, leading to increased excitability and agitation as the central nervous system seeks to rebalance itself. This manifests physically as tremors and agitation.

In contrast, stimulant withdrawal might exhibit fatigue and depression rather than tremors, opiate withdrawal often features symptoms like pain, diarrhea, and nausea, and hallucinogens are noted for psychological effects rather than physical withdrawal signs like tremors. Thus, in the context of withdrawal-related symptoms, sedatives clearly align with the onset of hand tremors and psychomotor agitation, making this choice the most suitable answer.