Medications That Are High-Risk for Seniors: What to Review

Every year, thousands of seniors end up in the hospital not because of a fall, heart attack, or infection-but because of a medication they were told was safe. It’s not that doctors are careless. It’s that many common drugs, especially those prescribed decades ago, are now known to be dangerous for older bodies. The truth? Medications that are high-risk for seniors aren’t always obvious. Some are sold over the counter. Others are still prescribed routinely, even though safer alternatives exist.

What Makes a Medication High-Risk for Seniors?

Aging changes how your body handles medicine. Your liver slows down. Your kidneys filter less efficiently. Your brain becomes more sensitive to sedatives. What was once a safe dose at 50 can become a dangerous one at 75. The American Geriatrics Society (AGS) tracks these risks through the Beers Criteria, a living guide updated every two years. The 2023 version lists 30 classes of drugs and 14 individual medications that should generally be avoided in adults 65 and older.

These aren’t random guesses. They’re based on hard data:

Some drugs increase fall risk by over 80%
Others raise dementia risk by more than 50% with long-term use
A few can trigger seizures, internal bleeding, or sudden drops in blood pressure

The CDC estimates that 40% of seniors take five or more medications at once. That’s called polypharmacy-and it multiplies the chances of harmful interactions. One drug might seem fine alone. But when combined with another? The risk spikes.

Top 7 High-Risk Medications to Review Now

Here are the most common offenders, backed by clinical evidence:

1. Zolpidem (Ambien®) and Other Sleep Aids

Used for insomnia, zolpidem, eszopiclone, and zaleplon are sedatives that linger in older bodies. Studies show they increase the risk of falls by 82% and double the chance of hip fractures. One study found residual drowsiness lasting up to 11 hours after taking it. That means someone could wake up disoriented, stumble to the bathroom, and fall. Seniors on these drugs are also more likely to sleepwalk or confuse nighttime awakenings with daytime alertness. The CDC links these medications to a 48% higher crash risk in drivers over 75.

2. Glyburide (Diabeta®)

This older diabetes drug is still prescribed, even though it’s one of the most dangerous for seniors. It causes severe low blood sugar (hypoglycemia) in nearly 30% of elderly users-more than twice the rate of newer alternatives like glipizide. Episodes often lead to confusion, fainting, or emergency room visits. In fact, CMS data shows glyburide causes 4.2 hypoglycemic emergencies per 100 patient-years. The FDA now requires a boxed warning for this drug in patients over 65.

3. Diphenhydramine (Benadryl®) and Other First-Generation Antihistamines

Many seniors use diphenhydramine for allergies, colds, or even sleep. But it’s one of the strongest anticholinergic drugs on the market. The Anticholinergic Cognitive Burden (ACB) scale gives it a score of 3-the highest possible. Long-term use (over 1,095 daily doses) increases dementia risk by 54%, according to a landmark study in JAMA Internal Medicine. It also causes dry mouth, constipation, urinary retention, and blurred vision. Even occasional use can make seniors feel foggy or unsteady.

4. Nitrofurantoin (Macrobid®)

Commonly prescribed for urinary tract infections, this antibiotic becomes toxic in seniors with reduced kidney function. If the creatinine clearance drops below 60 mL/min (common in older adults), nitrofurantoin can cause life-threatening lung damage. Studies report an 12.8-fold higher risk of pulmonary toxicity, with mortality rates hitting 18.3% in acute cases. The AGS now advises avoiding it entirely in patients with stage 3 or higher kidney disease.

5. Meperidine (Demerol®)

This opioid painkiller is rarely used anymore-but some doctors still reach for it. The problem? It breaks down into a toxic metabolite called normeperidine that builds up in older bodies. This can trigger seizures, even at low doses. The Cleveland Clinic found meperidine causes seizures at a rate of 8.7 per 1,000 patient-years, compared to just 1.2 with safer opioids like oxycodone. It’s been removed from most hospital formularies-but still lingers in prescriptions.

6. Alpha-1 Blockers (Doxazosin, Prazosin, Terazosin)

Prescribed for enlarged prostate or high blood pressure, these drugs cause sudden drops in blood pressure when standing up. This is called orthostatic hypotension. In seniors over 75, it happens in 24.7% of users-more than triple the rate of safer alternatives like chlorthalidone. The result? Dizziness, fainting, and falls. The EmblemHealth High Risk Drug Guide found these drugs increase syncope risk by 3.2 times compared to other antihypertensives.

7. Benzodiazepines (Lorazepam, Diazepam, Alprazolam)

Used for anxiety, insomnia, or muscle spasms, benzodiazepines are among the most dangerous drugs for seniors. They increase fall risk, confusion, and memory loss. A 2023 update to the Beers Criteria added a new warning: long-term use raises mortality risk by 50% over five years. Withdrawal can be deadly if stopped abruptly. Yet, many seniors have been on these for years, often without realizing the risks.

What Are Safer Alternatives?

You don’t have to live with poor sleep, pain, or anxiety. There are better options:

For sleep: Try trazodone (a low-dose antidepressant), melatonin, or cognitive behavioral therapy for insomnia (CBT-I). Studies show CBT-I succeeds in 78% of seniors after 6 weeks.
For diabetes: Glipizide, metformin, or GLP-1 agonists like semaglutide are far safer than glyburide.
For allergies: Switch to loratadine (Claritin®) or cetirizine (Zyrtec®)-both have near-zero anticholinergic effects.
For UTIs: Nitrofurantoin alternatives include fosfomycin or trimethoprim (if kidney function allows).
For pain: Acetaminophen (Tylenol®), physical therapy, or low-dose gabapentin are better than meperidine.
For blood pressure: Chlorthalidone, ACE inhibitors, or calcium channel blockers are safer than alpha-blockers.
For anxiety: SSRIs like sertraline or escitalopram, plus therapy, are more effective and safer than benzodiazepines.

Pharmacist shows a senior woman a safer medication alternative on a glowing screen.

How to Start the Review Process

Don’t wait for a crisis. Take control now:

Do a brown bag review. Gather every pill, supplement, and OTC med you take. Bring them to your doctor or pharmacist. Don’t rely on memory.
Ask about anticholinergic burden. Request the Anticholinergic Risk Scale (ARS) score for your meds. If it’s above 3, you’re at high risk.
Check for polypharmacy. If you’re on five or more medications, ask if any can be stopped or switched.
Request a pharmacist consult. Medicare covers Medication Therapy Management (MTM) for eligible beneficiaries. A clinical pharmacist can spot risks your doctor might miss.
Use electronic alerts. Most EHR systems now flag Beers Criteria drugs. Ask if your provider uses these alerts.

Why This Matters More Than Ever

In 2022, adverse drug events cost Medicare $177.4 billion. That’s more than the entire budget of the CDC. Nearly 1 in 3 hospitalizations among seniors is preventable-and medication errors are a leading cause. The good news? Studies show pharmacist-led reviews reduce high-risk drug use by 35% in just six months. When seniors switch from glyburide to glipizide, 41% report improved energy and fewer dizzy spells within 30 days. One 78-year-old woman stopped amitriptyline for nerve pain and no longer needed hospitalization for constipation.

The system is changing too. In January 2024, Medicare Advantage plans began tying 5% of quality bonuses to reducing high-risk prescriptions. Pharmacies now use real-time alerts at the counter. If you’re prescribed a Beers Criteria drug, the pharmacist may ask, “Have you talked to your doctor about alternatives?”

Seniors hold safe medication bottles while a tree with therapeutic alternatives grows in the center of the room.

Questions to Ask Your Doctor

- “Is this medication on the Beers Criteria list for seniors?” - “Is there a safer alternative with fewer side effects?” - “What happens if I stop this drug? Do I need to taper?” - “Could this interact with my other meds?” - “How long do I really need to be on this?” Many seniors don’t realize their doctor hasn’t reviewed their meds in years. A 2022 Kaiser Family Foundation survey found 58% of seniors on high-risk drugs didn’t know safer options existed. Only 32% had ever discussed risks with their prescriber.

What You Can Do Today

You don’t need a medical degree to protect yourself. Start by:

Writing down every medication you take, including vitamins and herbal supplements
Checking if any are on the 2023 Beers Criteria list (available free from the American Geriatrics Society website)
Asking your pharmacist to run a drug interaction scan
Bringing a family member to your next appointment to help ask questions

Medication safety isn’t about cutting pills. It’s about choosing the right ones. The goal isn’t to take fewer drugs-it’s to take only the ones that truly help, without putting your life at risk.

What is the Beers Criteria?

The Beers Criteria is a list of medications that are potentially inappropriate for adults aged 65 and older, developed and updated every two years by the American Geriatrics Society. It’s based on clinical evidence showing which drugs increase risks of falls, confusion, kidney damage, or death in seniors. It’s used by doctors, pharmacists, and Medicare plans to guide safer prescribing.

Can I just stop taking a high-risk medication?

No. Stopping some medications suddenly can be dangerous. Benzodiazepines, for example, can cause seizures or severe anxiety if stopped cold. Always work with your doctor to create a safe tapering plan. For some drugs, like glyburide or zolpidem, switching to a safer alternative is often the best option.

Are over-the-counter drugs really risky for seniors?

Yes. Many OTC drugs like diphenhydramine (Benadryl®), ibuprofen, and sleep aids contain ingredients that are especially dangerous for older adults. These aren’t labeled as “high-risk,” but they’re listed in the Beers Criteria. Always check with a pharmacist before taking any new OTC product.

How often should seniors review their medications?

At least once a year, but ideally every 3-6 months if taking five or more medications. If you’ve recently been hospitalized, had a fall, or noticed new confusion or dizziness, schedule a review immediately. Medicare requires annual medication reviews for beneficiaries enrolled in its Medication Therapy Management program.

Do pharmacies know about the Beers Criteria?

Yes. Most U.S. pharmacies use electronic systems that flag Beers Criteria drugs at the point of sale. If you’re prescribed a high-risk medication, your pharmacist may call your doctor to suggest an alternative. Ask your pharmacist to run a medication review-you’re entitled to it.

What if my doctor says the medication is necessary?

Ask why. Sometimes, the risks are outweighed by benefits-for example, a benzodiazepine used short-term after surgery. But if the reason is “it’s what we’ve always used,” ask for evidence. Request a second opinion from a geriatrician or clinical pharmacist. You have the right to ask for safer options.