- Polypharmacy usually means taking five or more medications regularly; it affects roughly a third of U.S. adults 65+ and raises the risk of falls, confusion, drug interactions, and hospitalization.
- Appropriateness matters more than the raw number — the goal is the right medicines at the right doses, not simply fewer pills.
- The AGS Beers Criteria (2023, the most recent update) lists medications that are often risky in older adults, such as first-generation antihistamines, benzodiazepines, and long-term NSAIDs.
- Deprescribing is a planned, supervised process led by your prescriber — never stop or taper medicines like benzodiazepines, opioids, antidepressants, beta-blockers, steroids, gabapentin, or PPIs on your own.
- Bring every bottle (prescriptions, OTC drugs, and supplements) to a dedicated medication-review visit and ask whether each one is still needed.
- For a medication error or suspected overdose, call Poison Control at 1-800-222-1222 (24/7) or 911 for emergencies.
Roughly a third of U.S. adults age 65 and older — surveys generally put it in the 36-42% range — take five or more prescription medications regularly, the threshold most geriatricians use to define polypharmacy. Add over-the-counter drugs and supplements, and the average American senior in primary care is managing seven to ten different products. Some of those medications are essential and life-extending. Many are not — and the cumulative burden contributes to falls, cognitive impairment, hospitalization, and avoidable death. Modern geriatrics treats deprescribing as just as important a skill as prescribing. For the bigger picture on managing chronic illness with age, see our guide to medical conditions.
What Polypharmacy Is
The most common operational definition is the regular use of five or more medications, though many experts prefer the framing “appropriate vs inappropriate polypharmacy.” A patient with heart failure, diabetes, atrial fibrillation, and osteoporosis may legitimately require many drugs, each with a clear evidence base. The clinical concern is when the regimen includes drugs without a clear indication, drugs treating the side effects of other drugs (the “prescribing cascade”), or drugs that are no longer beneficial given the patient’s life expectancy and goals of care.
According to the American Geriatrics Society (AGS), polypharmacy raises the risk of adverse drug events, drug-drug interactions, drug-disease interactions, falls, delirium, hospitalization, and mortality — even when each individual prescription seems reasonable in isolation. Risk climbs with each additional medication, so the total regimen, not any single pill, is what deserves review.
Why Older Adults Are More Vulnerable
Aging changes both pharmacokinetics (how the body handles a drug) and pharmacodynamics (how a drug affects the body). Renal function declines with age, slowing drug clearance and letting some medications and their active metabolites accumulate. Hepatic metabolism shifts. Body composition changes — more fat, less water, less muscle — which alters the distribution and half-life of fat-soluble and water-soluble drugs. The blood-brain barrier becomes more permeable, so centrally acting drugs hit harder. Receptor sensitivity changes for many drug classes, including opioids, benzodiazepines, and anticholinergics.
Older adults also accumulate chronic conditions, multiple prescribers, and OTC and supplement use that primary care often does not know about. Visual impairment, cognitive change, and complicated regimens reduce adherence and increase medication errors. The combined effect: an older adult is several times more likely than a younger adult to have an adverse drug event severe enough to require medical attention, and adverse drug events are among the most common causes of preventable emergency visits in this age group.
The AGS Beers Criteria
The AGS Beers Criteria is the most widely used reference for potentially inappropriate medications (PIMs) in older adults. The 2023 edition is the most recent update as of 2026 (the AGS revises it every few years, so check for a newer version). The criteria categorize drugs to avoid in most older adults, drugs to use with caution, drug-disease and drug-drug interactions to avoid, and medications that need dose adjustment for reduced kidney function.
High-profile categories on the Beers list include the following. Being on one of these drugs does not automatically mean it must be stopped — it means the prescriber and patient should weigh the specific risks and benefits and consider safer alternatives.
| Drug class (examples) | Main concern in older adults |
|---|---|
| First-generation antihistamines (diphenhydramine, hydroxyzine) | Strong anticholinergic effects — confusion, dry mouth, constipation, falls |
| Benzodiazepines and “Z-drugs” (zolpidem, eszopiclone) | Falls, fractures, cognitive impairment, dependence |
| Antipsychotics used for dementia-related behaviors | Increased stroke and death risk (FDA boxed warning) |
| NSAIDs with chronic use (ibuprofen, naproxen) | GI bleeding, kidney injury, blood-pressure and heart-failure effects |
| Tertiary tricyclic antidepressants (amitriptyline) | Anticholinergic and sedative burden, orthostatic hypotension |
| Skeletal muscle relaxants (cyclobenzaprine, carisoprodol) | Sedation, anticholinergic effects, questionable benefit |
| Sliding-scale insulin as the sole regimen | Hypoglycemia risk without better glucose control |
The 2023 revision refined several recommendations — for example, tightening guidance around aspirin for primary prevention in older adults, warfarin as a first-choice anticoagulant, and certain diabetes and cardiovascular drugs. Because the specifics evolve with each edition, treat the Beers Criteria as a conversation starter with your clinician rather than a self-editing checklist.
Common Risks of Polypharmacy
The risks fall into recognizable patterns. Falls are increased by sedatives, antihypertensives causing orthostasis, anticholinergics, opioids, and antipsychotics — see our companion fall prevention guide. Delirium in hospitalized older adults is precipitated in particular by anticholinergics, benzodiazepines, opioids, and corticosteroids.
Cognitive impairment is associated with sustained anticholinergic burden — observational studies link cumulative anticholinergic exposure to increased dementia risk, though the direction of causation is still debated. Hyponatremia from SSRIs and thiazides, hypoglycemia from diabetes regimens, orthostatic hypotension, urinary retention, bleeding from anticoagulant and antiplatelet combinations, and constipation are all common drug-related problems. Hospitalization from adverse drug events is one of the most preventable causes of geriatric admission.
The Prescribing Cascade
The prescribing cascade describes a vicious cycle: a drug causes a side effect, the side effect is interpreted as a new medical condition, and a second drug is added to treat it. Classic examples: a calcium channel blocker (amlodipine) causes ankle edema, prompting a diuretic; an antipsychotic causes Parkinsonism, prompting levodopa; a cholinesterase inhibitor (donepezil) causes urinary urgency, prompting an anticholinergic for “overactive bladder,” which then worsens the original cognitive impairment.
Recognizing prescribing cascades is one of the highest-yield deprescribing strategies. Reviews in journals such as JAMA Internal Medicine have highlighted how often clinicians miss them — and how a single well-chosen dose reduction can unravel a chain of three or four downstream prescriptions.
Conducting a Medication Review
A structured medication review covers every prescription, OTC product, supplement, and as-needed medication. Useful frameworks include the STOPP/START criteria (Screening Tool of Older Persons’ Prescriptions / Screening Tool to Alert to Right Treatment), the AGS Beers Criteria, and the algorithms at deprescribing.org for specific drug classes (proton pump inhibitors, benzodiazepines, antipsychotics, statins in advanced age, and antihyperglycemic drugs). Anticholinergic burden calculators can quantify the sedating, confusion-promoting load of a whole regimen at a glance.
The classic five questions to ask about each medication are: (1) What is the indication? (2) Is the drug effective for that indication in this patient? (3) Are the doses correct given renal and hepatic function? (4) What are the practical risks — interactions, adverse events, cost, and adherence burden? (5) Does the benefit still outweigh the burden given the patient’s goals and life expectancy? Writing the answers down, drug by drug, is what turns a vague “too many pills” worry into an actionable plan.
Deprescribing Done Safely
Deprescribing is an active, planned, supervised process — not abrupt stopping, and not something to attempt on your own. Many medications require a gradual, individualized taper to avoid withdrawal or rebound, including benzodiazepines, opioids, antidepressants, beta-blockers, gabapentinoids, corticosteroids, and proton pump inhibitors. Stopping some of these suddenly can be dangerous: rebound hypertension or cardiac events with beta-blockers, seizures with benzodiazepines, and adrenal crisis with long-term steroids are real risks. Your prescriber decides which drug to reduce first, how slowly, and what warning symptoms to watch for — and how to reach the office if problems arise.
The brown-bag review — bringing every bottle to the appointment, including supplements and anything from other pharmacies — is a high-yield primary care practice. The Medicare Annual Wellness Visit is an ideal time to do this, and it is covered with no copay for most beneficiaries. Many community pharmacies and health plans also offer medication therapy management (MTM) services, which are often free for Medicare Part D beneficiaries who meet the criteria.
The Pharmacist’s Role, Tools, and Caregivers
Pill organizers, blister packs from pharmacies, automated dispensers, and medication-reminder apps reduce errors and missed doses. Synchronizing refills so all prescriptions come due on the same day (med sync) cuts the number of pharmacy trips and makes gaps easier to spot. Bringing a family member or caregiver to medical visits — particularly for older adults with any cognitive concern — improves the accuracy of the medication list and follow-through on changes. Our guide to medical conditions covers many of the diagnoses that drive polypharmacy in the first place.
Pharmacist consultation — independent of the prescriber — adds another layer of safety, because pharmacists are experts in interactions, dosing, and duplicate therapy. Ask your pharmacist to run a full interaction check across everything you take, including supplements. Geriatric and consultant pharmacists are increasingly available through health plans, primary care offices, and clinics. If a medication error does happen — a double dose, the wrong pill, or a child getting into a bottle — call Poison Control at 1-800-222-1222, which is free, confidential, and staffed 24/7 by experts who can tell you whether it is safe to watch at home or whether you need to be seen.
When to See a Doctor
Talk to your primary care provider if you or a loved one is taking five or more medications, or has new dizziness, falls, confusion, weight loss, urinary problems, or any new symptom that began after a medication change. Schedule a dedicated medication-review appointment rather than trying to address the topic in passing at the end of a visit about something else. For broader functional concerns, see frailty syndrome, which interacts strongly with polypharmacy outcomes.
When to seek emergency care: Call 911 or go to the nearest emergency room for severe drowsiness or unresponsiveness, suspected severe hypoglycemia (sweating, confusion, weakness), fainting, a severe rash with blistering or mouth/eye involvement, sudden severe shortness of breath, signs of GI bleeding (black or bloody stools, vomiting blood), or any clear medication overdose. For a suspected but non-emergency medication error or overdose, call Poison Control at 1-800-222-1222.
Frequently Asked Questions
How many medications is too many?
There is no magic number. Five or more is the working definition, but appropriateness matters more than the count. A patient on ten well-indicated drugs may be safer than one on three poorly chosen ones. “Is each drug still earning its place?” is the right question — not simply “how do I get to a smaller number?”
Can I stop a medication on my own?
Generally no. Several classes — benzodiazepines, opioids, antidepressants, beta-blockers, corticosteroids, gabapentin, and PPIs — can cause significant withdrawal or rebound, and a few can be dangerous to stop abruptly. Coordinate any deprescribing plan with your prescriber, who will set a safe pace and tell you what to watch for.
Are supplements and OTC drugs really part of polypharmacy?
Yes. NSAIDs, sleep aids containing diphenhydramine, melatonin, herbal products, fish oil, and many vitamins interact with prescription medications and carry their own risks. Always include them in any medication review, and tell every prescriber and pharmacist about them.
What is the AGS Beers Criteria, and should I worry if I take a drug on the list?
It is a list of medications considered potentially inappropriate for many older adults. Being on a Beers-listed drug does not mean it must be stopped — it means the prescriber and patient should weigh the specific risks and benefits carefully and consider safer alternatives. Bring the question to your next visit rather than acting on it alone.
What should I bring to a medication-review appointment?
Bring every bottle you take — prescriptions from all pharmacies, OTC medicines, vitamins, and supplements — plus a written list of doses and why you take each one, and the names of all your prescribers. If possible, bring a family member or caregiver, and write down your top questions in advance.
Medical disclaimer: This article is for general education only and is not medical advice. It intentionally does not provide a stopping or tapering schedule. Do not start, stop, increase, or taper any medication on your own — abruptly stopping certain drugs (including benzodiazepines, opioids, beta-blockers, and steroids) can be dangerous. Review your regimen with a licensed clinician and pharmacist, and follow your prescriber’s instructions and your pharmacy label. For a medication error or suspected overdose, call Poison Control at 1-800-222-1222; call 911 for emergencies.
The Bottom Line
Polypharmacy is not just a number — it is a pattern that can quietly cause falls, confusion, and hospitalizations in older adults. Bring every bottle to your primary care visit, ask whether each drug is still needed, ask about safer alternatives for anything on the AGS Beers Criteria, and pay close attention to new symptoms that appear after a medication change. Done well and under a clinician’s guidance, deprescribing can improve quality of life as much as the right new prescription.
Sources
- American Geriatrics Society — 2023 AGS Beers Criteria for Potentially Inappropriate Medication Use in Older Adults (J Am Geriatr Soc): agsjournals.onlinelibrary.wiley.com
- American Geriatrics Society — patient-facing information on medications and aging: americangeriatrics.org
- Deprescribing.org — evidence-based deprescribing guidelines and algorithms: deprescribing.org
- U.S. Food & Drug Administration — drug safety communications and boxed warnings (antipsychotics in dementia): fda.gov/drugs
- American Association of Poison Control Centers — Poison Help line, 1-800-222-1222: poisonhelp.org