Respiratory and allergy medications
Diphenhydramine (Benadryl) and your teeth
Generic name: Diphenhydramine · Class: First-generation H1 antihistamine
Diphenhydramine is a first-generation antihistamine used for allergies, motion sickness, and over-the-counter sleep aids.
First-generation antihistamines are some of the strongest dry-mouth-causing medications available. Diphenhydramine has potent anticholinergic effects that suppress saliva flow significantly, especially in older adults and patients taking it nightly for sleep. The cavity risk from chronic use is real and often underestimated.
Diphenhydramine (Benadryl) and dental care
Common questions patients have about Diphenhydramine (Benadryl).
Related medications
Talk to us about your medications
Bring your medication list to your next visit.
We review every patient’s medications at every visit and adjust treatment planning when it matters. If you are starting a new medication or have a procedure coming up, mention it and we’ll walk through what to expect.