A Patient Who Has Seasonal Allergies in the Spring and Fall

A patient who has seasonal allergies in the spring and fall asks the nurse about oral antihistamines. Which response by the nurse is correct?

A) "Anticholinergic effects are more common with second-generation antihistamines."
B) "First-generation antihistamines, such as diphenhydramine [Benadryl], are more effective."
C) "Make sure you take antihistamines only when you have symptoms to minimize side effects."
D) "You should take oral antihistamines daily during each allergy season to get maximum effects."