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

Make sure you take antihistamines only when you have symptoms to minimize side effects

First-generation antihistamines, such as diphenhydramine [Benadryl], are more effective

Anticholinergic effects are more common with second-generation antihistamines

You should take oral antihistamines daily during each allergy season to get maximum effects