what medication adherence

What Is Medication Adherence? Why Taking Medicines as Prescribed Matters

Taking medicine is not only about having the right prescription. It is also about taking the right medicine, at the right dose, at the right time, exactly as your GP or healthcare professional has advised. This is called medication adherence.

Since many people take daily medications for long-term health conditions, they sometimes forget to take them. Some have trouble remembering medication times, repeat prescriptions, or multiple medications. Poor medication adherence is common in older adults and those with multiple chronic conditions. This problem often results from everyday issues like forgetfulness, busy schedules, or complicated medication regimens, making it hard to stick to treatment. 

Improved organization, regular medication reviews, and GP, pharmacist, or carer support can improve medication adherence. 

In this guide, you’ll learn:

  • What medication adherence means
  • Why taking medicines as prescribed is important
  • Common reasons people miss medicines
  • The difference between intentional and unintentional non-adherence
  • Practical ways to improve medication adherence
  • How pharmacists and carers can support better medication adherence

What Is Medication Adherence?

Medication adherence means taking your prescribed medicines exactly as your healthcare professional recommends.

This includes taking:

  • the correct medicine
  • the correct dose
  • at the correct time
  • for the recommended length of time

Medication adherence is about following the treatment plan agreed between you and your healthcare professional.

For example, if your GP prescribes a tablet to be taken twice a day, medication adherence means taking both doses each day unless your GP or pharmacist tells you to do something different.

Both short-term and long-term treatments require medication adherence. If you’re taking multiple medications, following your routine ensures they work.

Why Is Medication Adherence Important?

Taking medicines as prescribed gives your treatment the best chance of working properly.

When medicines are taken consistently, they can help:

  • Manage long-term health conditions
  • Control symptoms
  • Reduce the risk of complications
  • Support better treatment outcomes
  • Help you get the full benefit of your prescribed medicines

Many medicines only work properly when they are taken regularly.

For example, medicines used to treat:

  • High blood pressure
  • Diabetes
  • Asthma
  • Heart disease
  • Epilepsy
  • Thyroid conditions

often need to be taken every day, even if you feel well.

Missing doses or stopping medicines without medical advice may reduce how well your treatment works.

If you have concerns about your medicines or experience side effects, speak with your GP or pharmacist before making any changes to your treatment.

What Happens If You Don’t Take Medicines as Prescribed?

Missing a dose occasionally does not always cause serious problems, but regularly missing medicines can make it harder for your treatment to work as intended.

Depending on the medicine and your health condition, poor medication adherence may lead to:

  • Your condition becoming harder to control
  • Symptoms returning
  • Medicines becoming less effective
  • More frequent GP or hospital visits
  • Changes to your treatment plan
  • Increased risk of medicine-related problems

Every medicine is different. Some medicines are more sensitive to missed doses than others.

If you regularly forget your medicines or are finding your medication routine difficult to manage, speak with your GP or pharmacist. They can review your medicines and discuss practical ways to help you stay on track.

Medication Adherence, Medication Compliance and Concordance – What’s the Difference?

These three terms are often used together, but they do not all mean exactly the same thing.

TermWhat It Means
Medication adherenceTaking medicines as agreed with your healthcare professional.
Medication complianceAn older term that focuses on following medical instructions exactly as given.
ConcordanceA partnership between you and your healthcare professional where treatment decisions are made together.

Today, medication adherence is the term most commonly used by healthcare professionals because it recognises that patients should be involved in decisions about their treatment.

Rather than simply telling someone what to do, healthcare professionals work with patients to choose a treatment plan that suits their individual health needs and daily life.

Why Do People Struggle With Medication Adherence?

Most people who miss medicines are not trying to ignore medical advice.

Instead, everyday life often gets in the way.

Someone may:

  • Simply forget
  • Become confused by different medicine times
  • Worry about side effects
  • Struggle to organise repeat prescriptions
  • Take several medicines every day
  • fFnd medicine packaging difficult to open
  • Become unsure after medicines are changed

These challenges can affect anyone, but they are more common in older adults and people taking several prescribed medicines.

Understanding why medicines are missed is the first step towards improving medication adherence.

Common Reasons People Miss Their Medicines

There is rarely just one reason why someone struggles with medication adherence.

The reasons usually fall into four groups.

Practical Reasons

Daily routines can easily be disrupted.

For example:

  • Forgetting medicine times
  • Busy schedules
  • Travelling
  • Running out of medicines
  • Collecting prescriptions late
  • Confusing medication schedules

Physical Challenges

Some people find medicines physically difficult to manage.

Examples include:

  • Poor eyesight
  • Arthritis affecting hand movement
  • Difficulty opening medicine packaging
  • Swallowing tablets
  • Reduced memory

These challenges become more common as people get older

Emotional Concerns

Sometimes people stop taking medicines because they are worried.

Common concerns include:

  • Fear of side effects
  • Feeling better and thinking medicines are no longer needed
  • Worrying about taking medicines for many years
  • Feeling overwhelmed by several medicines

If you have concerns about your medicines, always discuss them with your GP or pharmacist before making any changes.

Changes to Treatment

Medication routines often become more difficult after:

  • leaving hospital
  • Changes made during a medication review
  • Starting a new medicine
  • Stopping an older medicine
  • Changing the dose of an existing medicine

Whenever your medicines change, it can take time to adjust to your new routine.

Types of Medication Non-Adherence

Healthcare professionals generally describe medication non-adherence in two ways.

Understanding which type applies can help identify the best solution.

Intentional Non-Adherence

Intentional non-adherence happens when a person chooses not to take their medicine.

This decision may be made because they:

  • Worry about side effects
  • Do not think the medicine is helping
  • Feel better and believe treatment is no longer needed
  • Are concerned about taking medicines for a long time
  • Have questions about the benefits or risks of treatment

In many cases, these concerns can be discussed with a GP or pharmacist. They may explain why the medicine is important, adjust the treatment if needed or suggest an alternative.

Never stop taking prescribed medicines without speaking to your healthcare professional first.

Unintentional Non-Adherence

Unintentional non-adherence happens when someone wants to take their medicine correctly but finds it difficult.

Common reasons include:

  • Forgetting doses
  • Taking medicines at the wrong time
  • Confusing different tablets
  • Running out of medicines
  • Struggling with complicated medication schedules
  • Difficulty opening medicine packaging
  • Memory problems

This is one of the most common reasons older adults miss medicines.

Unlike intentional non-adherence, the problem is usually not motivation. It is the difficulty of managing medicines every day.

Who Is Most Likely to Struggle With Medication Adherence?

Anyone can occasionally forget to take medicine, but some people are more likely to experience medication adherence problems.

This includes people who:

  • Take several medicines every day
  • Have long-term health conditions
  • Live alone
  • Have memory problems
  • Have recently left hospital
  • Have frequent medication changes
  • Care for a family member who takes several medicines

Older adults are particularly affected because medicine routines often become more complicated over time.

Medication Adherence and Patient Outcomes

Medication adherence plays an important role in how well treatment works.

When medicines are taken consistently as prescribed, patients are more likely to receive the full benefit of their treatment.

Good medication adherence may help:

  • Improve symptom control
  • Support long-term condition management
  • Reduce treatment interruptions
  • Help medicines work as intended
  • Improve overall patient outcomes

Poor medication adherence can make treatment less effective and may increase the need for additional medical care.

For this reason, healthcare professionals often review medicine routines during GP appointments, medication reviews and pharmacy consultations.

Signs Your Medication Routine May Need Extra Support

Sometimes medication routines become difficult gradually.

You may benefit from extra support if you often:

  • Forget whether you’ve taken today’s medicines
  • Miss doses several times each month
  • Run out of repeat prescriptions
  • Feel confused by different medicine times
  • Keep finding tablets left over
  • Worry about taking the wrong medicine
  • Rely on family members for medicine reminders
  • Find managing medicines stressful

Recognising these signs early can help prevent medicine-related problems from becoming more difficult later.

How to Improve Medication Adherence

Small changes can make medication routines much easier to follow.

Build a Daily Routine

Taking medicines at the same time each day helps build a habit.

Many people link medicines with regular daily activities such as:

  • Breakfast
  • Lunch
  • Evening meals
  • Brushing their teeth
  • Bedtime

A consistent routine makes it easier to remember medicines without relying on memory alone.

Use Medicine Reminders

Simple reminders can reduce missed doses.

Examples include:

  • Phone alarms
  • Reminder apps
  • Calendars
  • Medicine charts
  • Family reminders

Choose whichever reminder fits naturally into your daily routine.

Keep an Up-to-Date Medication List

Maintain a current list of:

  • Medicine names
  • Strengths
  • Doses
  • When each medicine should be taken

This is useful during GP appointments, hospital visits and medication reviews.

It also helps carers support medicine management more confidently.

Attend Regular Medication Reviews

Medication reviews allow your GP or pharmacist to check whether:

  • Medicines are still appropriate
  • Doses remain correct
  • Medicines can be simplified
  • Any side effects need discussing

Reviews are particularly important if your medicines have recently changed.

Speak to Your Pharmacist

If you’re finding medicines difficult to manage, your pharmacist may be able to help.

Depending on your circumstances, they may discuss:

  • Medicine routines
  • Repeat prescriptions
  • Reminder strategies
  • Medication organisation options
  • Available NHS support services

Never change your medicines without professional advice.

How Pharmacists Help Improve Medication Adherence

Community pharmacists do much more than dispense medicines.They can also help patients understand and manage their treatment safely.

A pharmacist may support medication adherence by:

  • Explaining how medicines should be taken
  • Answering questions about side effects
  • Reviewing medicine routines
  • Helping patients understand new medicines
  • Checking for medicine-related concerns
  • Supporting repeat prescription management
  • Discussing medicine organisation options where appropriate

If you’re unsure about any aspect of your medicines, your pharmacist should usually be your first point of contact.

How Family Members and Carers Can Help

Many carers play an important role in supporting medication adherence.

Simple ways to help include:

  • Reminding loved ones about medicine times
  • Checking repeat prescriptions are ordered on time
  • Attending medication reviews together
  • Helping update medication lists
  • Watching for changes after new medicines are started
  • Encouraging questions during GP or pharmacy visits

Support should always encourage independence wherever possible while helping medicines remain organised and easier to manage.

Medication Adherence Checklist

Use this quick checklist to see whether your medicine routine is working well.

  • I know what each medicine is for.
  • I know when to take each medicine.
  • I rarely miss doses.
  • My repeat prescriptions are ordered before medicines run out.
  • I know who to contact if I have questions.
  • My medicines are organised clearly.
  • I attend medication reviews when invited.

If you answered No to several of these, speaking with your GP or pharmacist may help improve your medication routine

How PillCare Helps Improve Medication Adherence

For some people, taking medicines as prescribed becomes easier when their daily medication routine is well organised.

PillCare works with ProCare Pharmacy to support eligible patients who may benefit from medication organisation services alongside NHS prescription support. Clinical decisions about your medicines always remain with your GP, pharmacist or another healthcare professional.

If you would like to learn more about how medication organisation works, visit our Medication Pouch Service page

Ready to Make Taking Medicines Easier?

If you’re finding it difficult to manage several prescribed medicines, speak with your GP or pharmacist. They can evaluate your medication routine and suggest support options. Your needs may require medication reviews, repeat prescription assistance, or medication organization. Check out PillCare’s Medication Pouch Service and NHS Prescription Delivery for more information

 Frequently Asked Questions

What is medication adherence?

Medication adherence means taking your doctor-prescribed medications exactly. This requires the right dosage, timing, and treatment duration. 

Why is medication adherence important?

Medication adherence is essential for proper function. Consistent medication use improves treatment, patient outcomes, and missed dose issues.

What is medication non-adherence?

Medicine non-adherence is not taking medications as prescribed. This can happen intentionally, like not taking medication, or unintentionally, due to forgetfulness, confusion, or practical issues. 

What is the difference between intentional and unintentional non-adherence?

Intentional non-adherence occurs when a person skips medication due to concerns, beliefs, or side effects. Unintentional non-adherence occurs when a person misses doses due to memory issues, complicated routines, or practical issues.

Who is most at risk of medication non-adherence?

Medication non-adherence is more common in people who:
take several medicines
have long-term health conditions
have memory difficulties
have recently left hospital
manage complex medication schedules
live alone without regular supportt

What are the common causes of poor medication adherence?

Common causes include:
forgetting doses
complicated medication schedules
concerns about side effects
misunderstanding medicine instructions
frequent medication changes
difficulty managing several medicines
running out of repeat prescriptions

How can I improve medication adherence?

You can improve medication adherence by:
taking medicines at the same time each day
using reminders or alarms
keeping an up-to-date medication list
attending regular medication reviews
using one pharmacy where possible
discussing any concerns with your GP or pharmacist
using medication organisation services if appropriate

Can pharmacists help with medication adherence?

Yes. Pharmacists can explain how medicines should be taken, answer questions, carry out medication reviews, support repeat prescriptions and discuss practical ways to make medication routines easier.

Can carers help improve medication adherence?

Carers help organise medications, order repeat prescriptions, attend appointments, update medication lists, and maintain daily medication routines.

Can medication organisation services help with medication adherence?

Organized medication support can simplify daily routines for some, especially when multiple medications are prescribed at different times. Your GP or pharmacist can advise you on whether this assistance is right for you. 

Who should I speak to if I’m struggling to take my medicines?

If you have trouble taking your medications, talk to your GP or pharmacist. They can evaluate your medication routine, answer questions, and offer practical advice to help you manage your medications more confidently.

Is medication adherence the same as medication compliance?

Medication adherence and medication compliance are closely related but not identical. Medication adherence is the preferred term because it recognises that patients and healthcare professionals work together to agree on a treatment plan, whereas compliance focuses on following instructions

Medical Disclaimer

The information on this page is for general educational purposes only and should not replace personalised medical advice.

Always take medicines exactly as prescribed by your GP, pharmacist or another qualified healthcare professional.

Do not stop, start or change any medicine without professional medical advice.

If you have questions about your medicines, are experiencing side effects or are finding your medication routine difficult to manage, speak with your GP or pharmacist.