Final answer:
Haloperidol, an antipsychotic medication, can cause CNS adverse effects including drowsiness and sedation, agitation and restlessness, and visual disturbances.
Step-by-step explanation:
Haloperidol, an antipsychotic neuroleptic medication, can cause CNS adverse effects such as drowsiness and sedation, agitation and restlessness, and visual disturbances. These side effects are commonly observed in patients who take haloperidol for the treatment of psychotic disorders, such as schizophrenia.