Northwestern University Jun 14 2026 Northwestern Medicine scientists have identified a safety concern associated with GLP-1 drugs. Using health record data, the research team tracked more than 42,000 adults already taking at least two types of blood pressure medications. After starting GLP-1s, these patients experienced higher rates of dizziness, fainting and other events related to low blood pressure, also known as hypotension. These hypotensive episodes were most common among patients aged 65