A 25 year old man with a psychotic illness, was treated with haloperido130mg/day. On the third day, he developed pacing, and inability to sit still in one place. The medication likely to be helpful is -
Restlessness (inability to sit still) and pacing suggests the diagnosis of Akathesia.
The drug of choice for Akathesia is one of the β-blocker.
Phenytoin
Propranolol
Methylphenidate
Trihexyphenedyl