Medically reviewed by Patricia Mikula, PharmD Key Takeaways Benadryl can cause drowsiness and should not be used when driving. Taking large doses of Benadryl can lead to serious health issues like ...

Benadryl (diphenhydramine) is an over-the-counter medication for allergies and cold symptoms. Common side effects include sleepiness, dizziness, dry mouth, and indigestion. Serious side effects are ...

Every allergy medication has its pros and cons. Here’s what to know. Credit...Amanda Hakan for The New York Times Supported by By Simar Bajaj Q: My allergist says that Benadryl isn’t safe. What’s the ...

For many people, springtime means sneezing, coughing, and itchy, watery eyes. Seasonal sonal allergies, also known as hay fever or allergic rhinitis, affect about a quarter of the country’s adults and ...

Diphenhydramine is the active ingredient in countless over-the-counter medications. But experts say there are serious risks to taking too much of the drug—or taking it too long. Diphenhydramine, a ...