Following the administration of hydroxyzine, which side effect should the nurse monitor for?

Hydroxyzine is an antihistamine with sedative properties, primarily used for its anxiolytic, antiemetic, and antihistamine effects. One of the most common side effects associated with hydroxyzine is drowsiness. This sedative effect is due to its action on the central nervous system, where it can inhibit excitability and promote relaxation and sleepiness.

When administering hydroxyzine, it is crucial for the nurse to monitor for drowsiness, as this can significantly impact the patient's ability to perform daily activities and may increase the risk of falls or accidents. Additionally, drowsiness can be particularly concerning if the patient is operating machinery or driving.

In contrast, insomnia is less likely to be associated with hydroxyzine given its sedative effects, while nausea and chest pain are not common side effects related to this medication. Thus, monitoring for drowsiness is essential to ensure patient safety and proper management of side effects related to hydroxyzine administration.