Which is a side effect of diphenhydramine?

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Prepare for the TMCC EMT-B Medications Test. Study with flashcards and multiple-choice questions, each with hints and explanations. Ensure you are exam-ready!

Multiple Choice

Which is a side effect of diphenhydramine?

Explanation:
Diphenhydramine is a sedating antihistamine. Its ability to cross into the brain causes central nervous system depression, which manifests as drowsiness and sedation. This CNS effect is the hallmark side effect you’d expect after giving it. Hypertension and hyperkalemia aren’t typical effects of diphenhydramine, and while anticholinergic properties can sometimes cause tachycardia, the most reliable and common adverse effect is drowsiness.

Diphenhydramine is a sedating antihistamine. Its ability to cross into the brain causes central nervous system depression, which manifests as drowsiness and sedation. This CNS effect is the hallmark side effect you’d expect after giving it. Hypertension and hyperkalemia aren’t typical effects of diphenhydramine, and while anticholinergic properties can sometimes cause tachycardia, the most reliable and common adverse effect is drowsiness.

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