Which symptom is most characteristic of akathisia?

• A. Memory loss
• B. Restlessness and agitation
• C. Euphoria
• D. Sedation

Answer: (B)

Akathisia is defined by a pronounced inner restlessness that drives constant movement. The defining feature is this urge to be in motion, which shows up as pacing, fidgeting, rocking, and an inability to sit still—often described as agitation that pushes the person to move. This motor-driven restlessness is the hallmark of akathisia, typically occurring with dopamine-blocking meds like certain antipsychotics. Other options don’t fit this syndrome: memory loss is a cognitive symptom, euphoria is an unusually elevated mood, and sedation is general drowsiness or slowing rather than the active restlessness that characterizes akathisia.