Many common prescription and over-the-counter medications can cause cognitive side effects like brain fog, memory lapses, and confusion. Stiolto (tiotropium/olodaterol) is an inhaled medication for COPD that contains a long-acting anticholinergic. While inhaled anticholinergics act primarily in the lungs, there is a known but small risk of these drugs affecting the central nervous system in older adults, which requires monitoring for signs of cognitive decline or memory issues.

This article explains more:
- Common anticholinergic drugs like Benadryl linked to increased dementia risk https://www.health.harvard.edu/blog/common-anticholinergic-drugs-like-benadryl-linked-increased-dementia-risk-20150128812

Also see:
- Medications That Can Mimic Dementia https://www.brightfocus.org/resource/medications-that-can-mimic-dementia/

Always talk with your doctor if you feel a prescribed medication is causing cognitive issues.