
Benadryl (diphenhydramine) is an over‑the‑counter antihistamine that also acts as an anticholinergic, causing drowsiness and other side effects, especially in older adults. Observational studies link long‑term high anticholinergic exposure to increased dementia risk, though causation remains unproven. The drug appears on the American Geriatrics Society’s Beers Criteria, prompting clinicians to favor newer, non‑sedating antihistamines for seniors. Short‑term, occasional use is generally considered low risk, but cumulative use should be avoided.

Multiple sclerosis (MS) impacts roughly 2.9 million people worldwide, with about one‑million cases in the United States. The disease presents in three clinical patterns—relapsing‑remitting, primary progressive, and secondary progressive—making each patient’s experience unique. Updated 2024 McDonald diagnostic criteria now allow earlier...

The FDA has formally proposed adding the modern UV filter bemotrizinol (BEMT) to the United States' list of approved sunscreen ingredients, marking the first potential new filter in decades. Bemotrizinol, already used internationally, provides highly photostable, broad‑spectrum protection without the...