Akathisia manifests as pacing and a total inability to sit still. If forced to sit still the person experiences extreme anxiety and agitation. In bad cases the anxiety and agitation may get worse even while the person is moving.
Akathisia is a common extrapyramidal side-effect of antipsychotic (aka neuroleptic) drugs. Akathisia usually responds well to drugs commonly used to control extrapyramidal side-effects.
