A patient with schizophrenia begins haloperidol therapy. Within days, he develops severe muscle stiffness and neck rigidity. Which adverse effect is most likely responsible?
Show answer and explanation
Correct answer: Acute dystonia
Acute dystonia is an early extrapyramidal effect of antipsychotics, presenting with sudden muscle spasms and rigidity.
Keep practicing
More Neuro-pharmacology questions
- A patient taking lithium for bipolar disorder begins experiencing tremor and confusion after starting hydrochlorothiazide. What is the most…
- A woman is prescribed fluoxetine for major depression. She is also taking a MAO inhibitor. What is the major risk of combining these medica…
- A patient with generalized anxiety disorder is started on buspirone. Which characteristic differentiates it from benzodiazepines?
- A patient taking levodopa for Parkinson disease develops hallucinations. Which drug can reduce this effect without worsening motor symptoms?
- A man with chronic pain is started on amitriptyline. What is the most likely adverse effect?
- A patient with epilepsy begins valproate therapy. Which serious adverse effect requires monitoring?