Drug Taken by Millions Linked to Higher Dementia Risk

A common hay fever medicine has raised concern because it belongs to a wider group of drugs linked in studies with memory and dementia risk. The issue is not ordinary short-term allergy treatment, but repeated or long-term exposure to medicines with anticholinergic effects.

The warning should be read carefully. These studies show an association, not proof that one hay fever tablet directly causes dementia. The practical message is to understand the type of antihistamine being used, avoid unnecessary long-term use of older sedating versions, and speak to a pharmacist or doctor before changing regular medication.