A client receiving a first-generation antipsychotic develops symptoms of acute dystonia, including muscle spasms and neck stiffness. Which type of medication should the nurse anticipate administering to manage these side effects?

Choice A reason: SSRIs are antidepressants used to treat depression and anxiety disorders. They do not address extrapyramidal side effects like acute dystonia, so they would not be useful in this case. Choice B reason: Beta-blockers are primarily used for cardiovascular conditions and akathisia (a sense of restlessness), but they are not the treatment of choice for acute dystonia. Choice C reason: Diphenhydramine, an antihistamine with strong anticholinergic properties, is effective in treating acute dystonia by restoring the balance between dopamine and acetylcholine in the basal ganglia. This makes it the correct choice for managing the client’s symptoms. Choice D reason: Benzodiazepines may help with agitation or anxiety, but they are not first-line treatment for acute dystonic reactions caused by antipsychotic medications.