Note: This article synthesizes real information from reputable U.S. health sources, including the FDA, CDC, AHRQ, peer-reviewed medical literature, and reporting on neurosurgeon Katrina Firlik, MD, and digital adherence innovation.
Introduction: The Quiet Health Crisis Hiding in Plain Sight
Medication nonadherence sounds like one of those dry health care phrases that belongs in a policy report, tucked between a chart and a footnote. But in real life, it can mean a patient with high blood pressure misses pills, suffers a stroke, and ends up in the operating room. It can mean a person with diabetes stretches insulin because the refill is expensive. It can mean a heart patient feels better, stops therapy, and later wonders why the “silent” disease suddenly got loud.
That is the human problem behind the title A neurosurgeon’s quest to solve medication nonadherence. Neurosurgeon Katrina Firlik, MD, moved from the operating room into digital health entrepreneurship after seeing the downstream consequences of chronic disease that was not controlled as intended. Her work with HealthPrize Technologies helped bring attention to a stubborn truth: a prescription does not help anyone if it sits in a drawer like a tiny, expensive paperweight.
Medication adherence means taking medicine as prescribed: filling it, taking the right dose, taking it at the right time, and continuing it for the recommended duration. Medication nonadherence includes skipped doses, delayed refills, stopping early, taking too little, taking too much, or misunderstanding instructions. The FDA defines adherence broadly as the extent to which patients take medications as prescribed, including filling prescriptions, remembering doses, and understanding directions.
Why a Neurosurgeon Would Care About Pills
At first glance, neurosurgery and medication adherence may seem like different planets. Neurosurgeons operate on the brain and spine. Medication adherence sounds more like a pharmacy counter issue. But the connection becomes painfully obvious when uncontrolled chronic disease damages the brain.
A patient with poorly controlled hypertension may not feel sick. High blood pressure often behaves like a bad roommate: quiet for months, then suddenly floods the kitchen. When blood pressure remains uncontrolled, the risk of stroke and intracerebral bleeding rises. By the time a neurosurgeon meets some of these patients, the missed doses are no longer a small daily inconvenience. They have become a crisis.
Firlik’s perspective is powerful because it starts at the end of the failure chain. She saw what can happen after the health system writes the prescription, the pharmacy fills it, the patient receives it, and then life gets in the way. Her shift from surgeon to entrepreneur reframed medication nonadherence not as “patient laziness,” but as a design problem, a behavioral problem, a communication problem, and often a cost problem.
The Scale of Medication Nonadherence in the United States
The United States writes billions of prescriptions every year, yet a significant portion never produces the intended benefit. CDC Grand Rounds reported that approximately one in five new prescriptions are never filled, and among prescriptions that are filled, roughly half are taken incorrectly in timing, dose, frequency, or duration. The same CDC report noted that medication nonadherence is associated with higher hospital admissions, worse outcomes, increased morbidity and mortality, and major health care costs.
Cost is one of the most powerful forces behind nonadherence. A CDC study on cost-related nonadherence among people with diabetes, cardiovascular disease, and hypertension found that those who experienced cost-related nonadherence had higher all-cause and disease-specific mortality than those who did not. In plain English: when people cannot afford medicine, health risks do not politely wait for payday.
Older adults are especially affected because many manage multiple chronic conditions at once. A 2024 CDC National Health Statistics Report found that 88.6% of U.S. adults age 65 and older took prescription medication in the past 12 months in 2021–2022. That same report examined cost-related nonadherence, including not getting medication due to cost and not taking medication as prescribed to save money.
Why Patients Do Not Take Medication as Prescribed
1. Cost and Insurance Barriers
Cost-related medication nonadherence is not mysterious. If a patient must choose between groceries, rent, transportation, and a refill, the prescription may lose. Even patients with insurance can face high copays, formulary changes, deductibles, and prior authorization delays. A pill cannot work if it is trapped behind a price tag.
2. Side Effects and Fear
Side effects matter. A patient may stop a medication because it causes dizziness, nausea, fatigue, cough, sexual side effects, or another unpleasant reaction. Sometimes the fear of side effects is enough to stop a person before the first dose. This is where clear clinician communication becomes essential. Patients need to know what is common, what is dangerous, what is temporary, and when to call for help.
3. Confusing Instructions
“Take twice daily” seems simple until a patient has six bottles, two specialists, one pharmacy switch, and a label printed in tiny font apparently designed for eagles. Health literacy, language barriers, complicated regimens, and unclear medication guides all contribute to nonadherence. The FDA has emphasized the need for easy-to-read patient medication information to help people use prescription drugs safely and effectively.
4. Forgetfulness and Daily Chaos
Many missed doses are not acts of rebellion. They happen because people are busy, tired, traveling, working shifts, caring for family, or simply human. Daily life is not a clinical trial. It has school pickups, dead phone batteries, lost pill bottles, and mornings where coffee is the only functioning medical device.
5. Low Perceived Need
Some diseases do not shout. Hypertension, high cholesterol, osteoporosis, and early diabetes may not cause obvious symptoms. When a patient feels fine, preventive medication can feel optional. This is one reason nonadherence is so common in chronic disease: the benefit is often invisible until the consequence becomes visible.
The Neurosurgeon’s Lens: Prevention Before the Operating Room
A neurosurgeon’s quest to solve medication nonadherence is not just about better reminders. It is about moving upstream. Instead of waiting for a hypertensive brain bleed, a preventable stroke, or a complication from uncontrolled disease, the goal is to strengthen the fragile daily link between prescription and behavior.
In surgery, systems are designed to prevent errors. There are checklists, sterile fields, imaging reviews, time-outs, and highly trained teams. Medication use at home has far fewer guardrails. The patient becomes the nurse, pharmacist, scheduler, supply manager, and quality-control officer. That is a lot to ask, especially from someone who may be sick, stressed, or financially stretched.
Firlik’s work helped highlight an important idea: adherence can improve when health care stops scolding and starts designing. People do not need another lecture from a clipboard. They need practical support, motivation, feedback, affordability, and systems that fit real life.
Digital Health and Gamification: Can Rewards Change Behavior?
HealthPrize became known for combining reminders, education, behavioral economics, gamification, and rewards to support medication adherence. The idea was not that patients are children who need gold stars. The idea was that human beings respond to feedback, progress, incentives, and small wins. Anyone who has ever protected a 400-day language-learning streak understands this. The owl knows what it did.
Gamification in health care can include points, badges, quizzes, refill reminders, educational nudges, sweepstakes, gift cards, progress dashboards, or social reinforcement. The goal is to make the right action easier and more satisfying in the moment. This matters because the reward of taking a cholesterol medication today may be a heart attack that does not happen years from now. That is a wonderful reward, but it is not exactly instant dopamine.
Digital adherence tools can also collect useful data. For example, refill records, patient check-ins, app engagement, smart pill bottles, and text responses may help care teams identify who is struggling before a hospitalization occurs. However, technology is not magic glitter. It must be accurate, ethical, private, accessible, and clinically useful. A reminder app that annoys a patient 14 times a day may improve one metric: phone throwing distance.
What Actually Helps Improve Medication Adherence?
Pharmacy-Based Interventions
The CDC highlights tailored pharmacy-based interventions for cardiovascular disease prevention, noting that the Community Preventive Services Task Force recommends these strategies and found them cost-effective. Pharmacists can help synchronize refills, simplify regimens, provide counseling, identify interactions, and help patients understand why therapy matters.
Medication Management and the Brown Bag Method
The Agency for Healthcare Research and Quality recommends medication management strategies that engage patients and caregivers in creating a complete and accurate medication list. One practical approach is the “brown bag” review, where patients bring all medications, supplements, and over-the-counter products to an appointment. It sounds humble, but it can reveal duplicate therapy, old prescriptions, wrong doses, and bottles that expired sometime around the invention of Wi-Fi.
Clear Communication
AHRQ’s patient safety resources emphasize that adherence can improve through combinations of convenient care, clear communication, reminders, self-monitoring, clinician reinforcement, counseling, telephone follow-up, and supportive care. The key word is combinations. One reminder rarely solves a problem caused by cost, side effects, depression, transportation, and confusing instructions all at once.
Artificial Intelligence and Adaptive Messaging
AHRQ-funded work has explored artificial intelligence-adapted text messaging for medication adherence. Text messaging has shown promise, but patients have different reasons for missing medication. Adaptive systems may eventually tailor messages based on individual barriers, beliefs, timing, and response patterns. The future is not just “Did you take your pill?” It may be “What is stopping you today, and what support would actually help?”
Specific Examples: How Nonadherence Shows Up in Real Life
Hypertension
A patient with high blood pressure may skip medication because the disease feels invisible. Months later, the same patient may arrive in an emergency department with stroke symptoms. This is the type of downstream outcome that makes a neurosurgeon care deeply about daily adherence. The best brain surgery is sometimes the one a patient never needs because prevention worked.
Diabetes
People with diabetes may ration medication or supplies because of cost. They may also struggle with complex routines involving meals, glucose checks, activity, and multiple drugs. Nonadherence can contribute to emergency visits, kidney disease, nerve damage, vision problems, and cardiovascular complications.
COPD and Asthma
Inhalers are easy to prescribe but not always easy to use correctly. Patients may stop controller therapy when breathing improves, then rely too heavily on rescue medication. Education, inhaler technique checks, refill monitoring, and reminders can make a measurable difference.
Mental Health Conditions
Medication adherence in mental health can be affected by stigma, side effects, delayed onset of benefit, forgetfulness, cost, and the condition itself. Support must be compassionate, not judgmental. A patient who stops medication is not a failed patient; they are a person whose treatment plan may need redesigning.
The Ethical Side: Support Is Better Than Surveillance
Medication adherence technology raises important ethical questions. Who owns the data? Can insurers or employers misuse adherence information? Will patients feel supported or watched? These questions matter because trust is not a decorative accessory in health care. It is load-bearing.
The best adherence programs should be transparent, opt-in when possible, privacy-conscious, clinically grounded, and focused on helping patients rather than punishing them. A missed dose should trigger curiosity, not shame. The right question is not “Why didn’t you obey?” It is “What got in the way?”
What Clinicians Can Do
Clinicians can improve adherence by asking better questions. Instead of asking, “Are you taking your medication?” which practically begs for a polite “yes,” they can ask, “Many people miss doses. In the past week, how many did you miss?” This normalizes honesty. It turns confession into conversation.
They can also simplify regimens, prescribe once-daily options when appropriate, use combination pills when clinically suitable, check for lower-cost alternatives, involve pharmacists, provide written instructions, and follow up after new prescriptions. Small workflow changes can prevent big downstream harm.
What Patients and Families Can Do
Patients should never stop or change prescription medication without speaking with a qualified health professional. But they can take an active role by asking practical questions: What is this medication for? What happens if I miss a dose? What side effects should I report? Is there a lower-cost option? Can my refills be synchronized? Can I use a pill organizer? Is this still necessary?
Family members and caregivers can help by supporting routines, attending appointments when invited, organizing medication lists, and watching for side effects or confusion. The goal is not to become the medicine police. Nobody wants Thanksgiving dinner interrupted by a cousin with a clipboard. The goal is teamwork.
Why Medication Nonadherence Is Not a “Patient Problem” Alone
Calling nonadherence a patient problem is too easy and too incomplete. Patients live inside systems. Drug pricing, insurance rules, appointment access, pharmacy deserts, health literacy, clinician communication, side effects, cultural beliefs, and technology access all shape behavior. The patient may be the one swallowing the pill, but the entire health system influences whether that pill is available, understood, affordable, and trusted.
This is why the neurosurgeon’s quest matters. It pulls medication adherence out of the narrow lane of “remember better” and places it where it belongs: in the center of prevention, chronic disease management, digital health, behavioral science, health equity, and patient safety.
The Future of Medication Adherence
The next generation of adherence solutions will likely blend human support with smarter technology. Imagine pharmacy teams receiving early alerts when refill patterns change. Imagine AI systems that adapt messages based on patient preferences without becoming creepy. Imagine medication labels that are easier to understand. Imagine benefits designed so patients do not have to perform financial gymnastics to stay alive.
But the future should also remain humble. No app can replace a trusted clinician. No smart bottle can fix an unaffordable drug. No reward program can erase side effects. The strongest approach will be layered: affordable medication, clear instructions, simplified regimens, pharmacy support, digital nudges, caregiver involvement, and a culture that treats adherence as a shared responsibility.
Additional Experiences and Reflections on a Neurosurgeon’s Quest to Solve Medication Nonadherence
One of the most meaningful lessons from this topic is that medication nonadherence often looks small until the consequences become large. In a clinic, it may appear as a missed refill. In a pharmacy, it may appear as a prescription that was never picked up. At home, it may look like a bottle pushed behind the toaster. But in the hospital, the same pattern can appear as a stroke, a heart attack, uncontrolled blood sugar, or a preventable admission.
From a neurosurgeon’s point of view, the emotional weight is different. Surgeons are trained to act decisively when disaster arrives. They remove clots, relieve pressure, stabilize spines, repair damage, and make urgent decisions when minutes matter. Yet many surgical emergencies have roots that began much earlier, far away from the operating room. That realization can be frustrating. It is like being asked to fix a roof during a thunderstorm when the first missing shingle was visible months ago.
The experience also reveals how deeply human medication-taking is. People do not live in spreadsheets. They forget. They worry. They dislike side effects. They mistrust medications because of past experiences. They feel embarrassed to admit they cannot afford treatment. They stop because they feel better, or because they feel worse, or because nobody clearly explained what “long-term therapy” means. The phrase “noncompliant patient” misses all of that. It turns a complex story into a scolding label.
A better experience begins with empathy. When a clinician asks, “What makes this medication hard to take?” the room changes. The patient may mention cost, dizziness, schedule chaos, fear, or confusion. Each answer opens a different solution. Cost may require generics, assistance programs, formulary changes, or pharmacy coordination. Side effects may require dose adjustment or a different therapy. Forgetfulness may call for reminders, packaging, pillboxes, or linking doses to daily habits. Confusion may require plain-language instructions and teach-back.
The entrepreneurial lesson is equally important. Health care innovation is difficult because the buyer, user, prescriber, payer, and beneficiary are often different people. A patient may love a tool, but an insurer must pay for it. A physician may support it, but a pharmacy must integrate it. A pharmaceutical company may fund it, but privacy rules and medical review processes must approve it. Medication adherence is not just a clinical challenge; it is a maze with fluorescent lighting.
Still, the quest is worth pursuing. Better adherence means fewer preventable complications, fewer emergency visits, better chronic disease control, and less suffering. It also means respecting patients enough to design care around real life. That may be the most important insight from a neurosurgeon entering the adherence world: the most powerful intervention is not always the most dramatic. Sometimes it is a reminder, a conversation, a cheaper prescription, a clearer label, or a pharmacist who notices a refill gap before the body pays the price.
Conclusion: From Brain Surgery to Better Systems
A neurosurgeon’s quest to solve medication nonadherence is really a quest to prevent avoidable harm. It is a reminder that health care does not end when the prescription is written. In many ways, that is when the hardest part begins.
Medication adherence is not solved by blame. It is improved by design, affordability, communication, trust, pharmacy support, smart technology, and a willingness to see patients as people rather than walking refill metrics. Katrina Firlik’s journey from neurosurgery to digital health shows why prevention deserves the same creativity and urgency as emergency care. After all, the best outcome is not always a heroic rescue. Sometimes it is the quiet day when the patient takes the right medicine, avoids the hospital, and gets to keep living an ordinary life. In medicine, ordinary can be magnificent.