For Clinicians | Medication List Accuracy: Nobody Has the Whole Picture Anymore

By Dr. Jamie Wilkey, PharmD, Director of Clinical Education
Medically reviewed and edited by Kristen Carpenter, PA-C

We’re closing out National Preparedness Month with the one step that costs nothing and that almost no patient has actually done: a medication record that’s correct.

As a pharmacist working in retail for many years, it became really clear to me that patients have a hard time keeping track of what they take. Especially polypharmacy patients, the ones on five or more medications. They don’t know all the drugs, the doses, who wrote those prescriptions, and sometimes even where they got it filled.

That’s not just a mess for the pharmacist trying to get a refill on the right medication. Deep down it’s a core problem for preparation and for healthcare in general. If there’s no one true source of what a patient is taking, in one place they can get to, it creates a ripple effect.

We are going to tackle this topic that seems simple, but is harder for your patients than you think. I’ll cover what patients actually bring us in the pharmacy, why no single record exists anymore, and how to work with a patient to start fixing it to get all of their medications in a record in one place.

What patients actually bring us

Ask a patient what they take and you’ll usually get the purpose, not the name. The blood pressure one. The thyroid one. The night blood sugar medicine. Not many know the full name, let alone the strength and the frequency. They get it from the pharmacist, put it in the organizer, and that’s the system.

When they do bring their medications in, it’s what we call brown bagging. A grocery bag on the counter, and we go through it vial by vial. They’re usually from different pharmacies and different doctors, and some aren’t being taken anymore. Just old vials still sitting in the house. Those vials are the only record that exists.

Then someone needs a transfer. They evacuated, or they’re traveling and out of refills. They hand me the bag as the pharmacist, or the handwritten note that says what everything is for but not what it is.It’s really hard to transfer a prescription I can’t identify (“your patient said they are taking a few medications for blood pressure and they need the one that is a red tablet sent over to us“), and I can’t call a prescriber about a medication I can’t name (“your patient said you gave them a pill last year for their mood. They need that refilled“).

How accurate are the lists patients do keep?

You might be thinking the patients who keep a list are fine. They aren’t.

In 138 patients at an urban emergency department in Australia, 75% of self-administered medication history forms had at least one discrepancy against a pharmacist-taken history, and 20% had at least one the authors judged high-risk ¹. In a US preoperative clinic, of 82 lists patients brought in themselves, 94% had at least one discrepancy against the clinic record, with a median of four per list ².

Both studies enrolled patients who produced a list at all. That’s the organized minority, the people who already did the thing we keep telling everyone to do. These numbers are the best case scenario. Yikes!

Nobody has the whole picture anymore

There used to be one record that tied it all together, and it was the insurance company because everything billed through them. Whatever pharmacy filled it, whichever doctor wrote it, all claims routed through the same company. That made the payer’s file the most comprehensive picture of what a patient was taking.

Now that behemoth that held everyone’s Rx history is coming apart. Patients frequently pay cash or use a discount card when it’s cheaper. They fill somewhere else because it’s faster. Some don’t want one company holding a list of everything they take and they intentionally fill for cash. Others don’t have insurance at all. And to add complexity to this, prescriptions start in more places now that there are so many new healthcare vertical companies with menopause from one service, weight loss from another, and mental health from a third. All on top of a primary care provider a patient already sees. 

So there’s no entity with the throughline anymore, and the patient became the record by default. We weren’t trained for this. Pharmacy school taught me a closed loop: one prescriber, one chart, one pharmacy that knew about both. That system is evaporating like a puddle on a hot summer day.

And before you assume your own office chart is the good copy: when researchers compared patient, GP, and community pharmacist records for 751 older patients in the Netherlands on an average of eight medications, the three sources disagreed for 71.9% of patients ³. There’s no correct copy for a patient to use or reference. Yikes!

The forms aren’t built to be patient-facing

So the patient is the walking medication record now. Nobody ever taught them how to do this, and the forms we hand them don’t help much.

Pull up any medication list template, the free federal one or whatever your clinic prints. They all start the same way: the name of the drug, and the strength. That’s what most just don’t know (especially those polypharmacy patients on 5+ medications). What they can tell you is that it’s the little white one for blood pressure.

So we hand someone a form that starts with the part they can’t do, and then we’re surprised when what comes back is wrong or half empty.

Here’s one thing you can use though. In that Australian study, the patients who left the pharmacy line blank had more than double the discrepancy rate, worse than patients on a long list of medications ¹. Tread carefully here…it predicts trouble, it doesn’t cause it. Filling the line in doesn’t make the rest of the list right. But a blank there tells you to slow down and ask more questions.

And to make matters worse, these patient-led records go stale fast. A patient fills one out in March, a specialist changes a dose in June, and nobody goes back to update it.

What actually works

Start with the one that already exists. Keep it simple!

If your patient is on Medicare Part D and meets the targeting criteria, their plan has to offer them a comprehensive medication review (CMR) every year, done by a pharmacist, at no cost to them ⁴. They walk out with a written summary in a standardized federal format, and that summary includes a personal medication list ⁵. I’ve done hundreds of these and they are fun. Most patients have never heard of them or think it is spam when a pharmacist calls them and offers to do one. 

When they don’t qualify for a CMR, or you want to do something today, print what you have. Have your MA pull the medication list off the chart and hand it over as a starting draft. Not a record. A draft. Make that clear it is just a springboard to start from because the minute a patient decides the office list is the authoritative one, they stop adding to it. And what’s missing from your chart is the whole point: the other prescribers, the cash fills, the online services, the supplements.

What the printout does is solve the naming of those medications. Your patient can’t write atorvastatin 40 milligrams from memory. They can absolutely correct a page that already says it and add “for cholesterol.” So they’re clear on how the name matches up with the indication

Then send them to their pharmacist with the bag. Brown bagging is helpful. In a randomized trial across three teaching hospitals in Colombia, a pharmacist-acquired history dropped the share of patients with at least one discrepancy from 93.6% to 60.7%⁶. A third better, and still wrong in six patients out of ten. That’s the ceiling, and it’s still the best we’ve got.

It’s also the only way an interaction check means anything, which we wrote about separately in The Drug Interactions You Create in an Emergency.

If you want a template to point them at, AHRQ’s is free, in English and Spanish, and it’s fine ⁷. No need to build your own.

This is what appropriate medical preparation looks like

Even in the best of times, when everything is working, it’s hard to help a patient nobody has a complete record for. In a disaster it compounds and makes everything worse.

The preparation that matters here is information, not inventory. A record the patient can actually get to, that says enough for someone else to act on it. None of this replaces primary care. Primary care is the bedrock for a patient building their Rx profile appropriately and accurately. 

That’s the work we do at Jase. We’re a team of physicians, physician assistants, and pharmacists, and we handle the clinical side ahead of time so a patient isn’t starting from zero when they can’t reach anyone. For the medications, patients complete an online intake for evaluation by a board-certified physician, which may include a live synchronous consult depending on their state. This record is a page your patient makes, and it’s the half of preparation we can’t do for them.

The bottom line

My grandma had this figured out on her own. She was on warfarin and knew how tricky that medication was with drug and food interactions. So she didn’t leave anything to chance. She typed her medications out on one page: the name, what it was for, the strength, the doctor who wrote it, and the pharmacy that filled it. Then she printed it and kept it in the kitchen, where someone (like an emergency responder) could easily and clearly find it.

Follow her great example! A simple Word document or the notes app works great. What it needs is to travel with the patient, to be findable by somebody else, and to have a date on it. Then update it once a year at the physical (at a minimum, and ideally whenever anything changes with their medications or supplements). It won’t be perfect. Even a pharmacist taking a full history doesn’t get it perfect. But a dated, mostly-right list that a stranger can find beats a grocery bag every time.

Sources

1. Wai A, Salib M, Aran S, Edwards J, Patanwala AE. Accuracy of patient self-administered medication history forms in the emergency department. American Journal of Emergency Medicine. 2020;38(1):50-54. Cross-sectional study, urban emergency department, Australia, 138 patients. https://pubmed.ncbi.nlm.nih.gov/31005394/
2. Lee KP, Nishimura K, Ngu B, Tieu L, Auerbach AD. Predictors of Completeness of Patients’ Self-reported Personal Medication Lists and Discrepancies With Clinic Medication Lists. Annals of Pharmacotherapy. 2014;48(2):168-177. Academic hospital preoperative clinic, 82 patient-brought lists, data collected January to October 2010. https://doi.org/10.1177/1060028013512109
3. Bosch-Lenders D, Stoffers HEJH, Winkens B, Twellaar M, Hufen WJM, et al. Discrepancies in prescribed medications as reported by patients, general practitioners, and community pharmacists in older patients with polypharmacy in primary care. BMC Primary Care. 2026. 751 patients across 24 general practices and 17 community pharmacies, the Netherlands. https://doi.org/10.1186/s12875-026-03332-3
4. Centers for Medicare and Medicaid Services. Medication Therapy Management. Part D sponsors must establish an MTM program, and programs may be delivered by pharmacists or other qualified providers. Contract year 2026 targeting criteria are described in the CY 2026 Medicare Advantage and Part D final rule fact sheet. https://www.cms.gov/medicare/coverage/prescription-drug-coverage-contracting/medication-therapy-management
5. Centers for Medicare and Medicaid Services. Medicare Part D Medication Therapy Management Program Standardized Format, frequently asked questions. Sponsors must at a minimum offer a comprehensive medication review annually to targeted beneficiaries, and the written summary provided to the beneficiary includes a Personal Medication List and a Medication Action Plan. https://www.cms.gov/medicare/prescription-drug-coverage/prescriptiondrugcovcontra/downloads/mtm-program-standardized-format-faqs-v08-1512-.pdf
6. Becerra-Camargo J, Martinez-Martinez F, Garcia-Jimenez E. A multicentre, double-blind, randomised, controlled, parallel-group study of the effectiveness of a pharmacist-acquired medication history in an emergency department. BMC Health Services Research. 2013;13:337. Three teaching hospitals in Bogota, Colombia, 242 patients completed. https://pmc.ncbi.nlm.nih.gov/articles/PMC3844415/