As a general rule, older adults should not take ... drugs due to an increased risk of side effects like constipation and dizziness. If you take Benadryl, avoid other sedating medicines such ...

Benadryl (diphenhydramine) is an over-the-counter (OTC) antihistamine commonly used to treat allergies that is also sometimes used as a sleep aid for insomnia. Benadryl is only intended for the ...