Question

a nurse is teaching an adult client about diphenhydramine. the nurse should inform the client to expect which of the following adverse effects while taking this medication? muscle tremors drowsiness excitation insomnia

Explanation:

Diphenhydramine is an antihistamine with sedative properties. Among the options, drowsiness is a common adverse effect of antihistamines like diphenhydramine. Muscle tremors, excitation, and insomnia are not typical adverse effects of this medication; instead, sedation (drowsiness) is expected.

Answer:

B. Drowsiness