low blood pressure can result in reduced blood flow and circulation into the brain with poor brain function. the usual symptom of dangerously low blood pressure (hypotension) is a depressed level of consciousness—someone acting sleepy or “out of it. ” hallucinations are not a “typical” symptom of low blood pressure. however i wouldn’t rule it out as a possibility in rare cases. it would be important to look for something else causing both the low blood pressure and the hallucinations like a toxic drug effect or dehydration causing delirium in an older person.
can low blood pressure cause hallucinations?