Pediatric ATI Practice Exam 2025 - Free Pediatric Practice Questions and Study Guide

Drowsiness is a well-known and common side effect of diphenhydramine, especially in children. As an antihistamine, diphenhydramine works by blocking histamine receptors in the body, which can lead to sedation and increased sleepiness. This sedative effect can be particularly pronounced in younger patients, making it essential for parents to be aware of the possibility that their child may become overly drowsy after taking the medication. Monitoring for drowsiness is important to ensure the child remains safe and is not at risk for accidental injury due to altered alertness.

In contrast, polyuria, which refers to increased urine output, is not a typical side effect associated with diphenhydramine. Despite being a medication that can affect the central nervous system, it does not commonly result in excessive urination.

Drooling is not a recognized side effect of diphenhydramine, meaning it is not an expected outcome for children taking this medication.

Hypogeusia, or a reduced sense of taste, is also not widely reported as a side effect of diphenhydramine, making monitoring for this condition unnecessary in the context of this medication.

Understanding these effects and monitoring for drowsiness allows parents to facilitate appropriate