A 19 year old boy suffering from chronic schizophrenia is put on haloperidol in the dose of 20 mg/day. A week after the initiation of medication the patient shows restlessness, fidgety, irritability and cannot sit still in one place. The most appropriate treatment strategy is -
Restlessness, fidgety, irritability and inability to sit still at one place in a patient, one week after initiation of antipsychotic (haloperidol) suggest the diagnosis of Akathisia.

"The first line drug for akathisia is most commonly a β-blocker".
Increase in the dose of haloperidol
Addition of anticholinergic drug
Addtion of beta blocker
Adding another antipsychotic drug