A pharmacist’s perspective

One of the hardest conversations I have as a pharmacist starts like this:
“I’ve been on this medication for years. Why would it be a problem now?”
It’s a fair question. And the answer is almost never that the medication was wrong.
It’s that our bodies change, even when our prescriptions don’t.
As a result, after age 65, medications can start behaving differently. Sometimes this shows up as falls, confusion, fatigue, or a loss of confidence that no one immediately connects back to a pill bottle.
In my experience, here are a few medication categories that I’ve seen cause problems most often as people age. Not because they’re bad drugs, but because they’re often the wrong fit for this stage of life.
Sleep Aids and Anti-Anxiety Medications
Medications like benzodiazepines, prescription sleep aids, and even some over-the-counter products can increase fall risk and affect memory and balance.
These changes may come on so gradually that they may barely be noticeable.
Medications That Affect Memory and Focus
Some medications interfere with a brain chemical involved in memory and thinking. They show up in allergy treatments, bladder medications, and even some mental health prescriptions.
Cognitive decline may not just be aging. Sometimes it’s medication-related and fixable.
Blood Pressure and Heart Medications
Some blood pressure medications can cause side effects such as dizziness (especially when standing up), fatigue and brain fog.
Often, the goalposts never moved. Blood pressure targets that made sense at 50 can be too aggressive at 75. Safety and quality of life matter just as much as numbers.
Diabetes Medications and Low Blood Sugar
Low blood sugar in older adults doesn’t always look dramatic. Sometimes it looks like confusion, or a fall, or an ER visit no one expected.
As people age, clinicians should reevaluate medication plans. Stringent blood glucose goals that make sense for younger individuals are not always appropriate for older adults.
The Cumulative Effect No One Warns You About
Often, it’s not one medication, it’s what we call polypharmacy.
- A sleep aid
- A blood pressure medication
- Something for anxiety or pain
Each one reasonable on its own. Together, they can quietly change how someone moves through the world.
Ultimately, aging well isn’t necessarily about taking less. It’s about taking what still makes sense now.
Medication reviews shouldn’t happen only after a fall, a hospitalization, or a scary moment. They should be part of routine care, especially if independence matters.
What symptoms would make you question whether a medication still fits?