The Independent | Hayfever drugs 'could reduce brain size and increase risk of dementia and Alzheimer's', study says The Independent A group of widely used drugs available over-the-counter and on prescription could be linked to the development of dementia and Alzheimer's in older adults, a study has found. Scientists believe they have found a link between the prolonged use of ... Hayfever drugs may shrink brain and raise dementia risk, warn scientists Common over-the-counter drugs can hurt your brain Common allergy and cold medicines shrink brain, could lead to Alzheimer's, study finds |