ADHD Medication

In the UK, prescription for ADHD should be evidence-based and regularly reviewed by a psychiatrist with expertise in adult ADHD. Waiting times in NHS services can be long, which is why many adults are turning to private providers.

We know ADHD management can be life-changing for patients and their families. If you think you may have ADHD, a comprehensive assessment with a consultant psychiatrist is an important first step in exploring your options.

In this article we break down what medication options are offered in the UK for adults, what medication does and how it might help your ADHD symptoms.

ADHD Medication Options

ADHD medication is divided into two groups: stimulants and non-stimulants. Most people have heard of the first category, and this is where we have most evidence for efficacy in ADHD.

Stimulants have a large variety of names. You might have heard of Elvanse, Vyvanse, Ritalin, Concerta or Adderall. These are a few of the brand names for stimulant medication. The Royal College of Psychiatrists recommends stimulants as a first line treatment for adults with ADHD – methylphenidate, dexamfetamine and lisdexamfetamine – and one non-stimulant medication, atomoxetine.

There are also other types of medication sometimes used in ADHD treatment, such as: guanfacine, clonidine, bupropion and modafinil. You may have come across these or seen them mentioned in forums online. None of these options is currently licensed in the UK for treatment of ADHD in adults and there is a limited amount of evidence for their use.

How does ADHD Medication work?

You may have heard about the dopamine hypothesis in ADHD. Our brains produce dopamine and it binds to different receptors in areas of the brain to produce effects e.g. memory, learning and concentration. Our brain uses complex pathways to regulate the amount of dopamine circulating.

What Does Dopamine Do?

Dopamine has lots of different functions in the brain. It is important that we do not have too much dopamine, so the brain produces it and then reabsorbs it in a cycle. We used to think that ADHD brains just had less dopamine but the research shows it is more complicated than that. It is more likely that the dopamine pathways function differently, which leads to altered levels of dopamine in different areas of the brain.

When we look at the brains of people with ADHD we find that sometimes parts of their brains are better at mopping up dopamine quickly, whereas in other areas they can also have more receptors for dopamine. This might explain why people with ADHD can find it hard to focus on a boring lecture at university but also can hyperfocus on a subject they find fascinating.

Other Neurotransmitters

Dopamine is not the only neurotransmitter involved in ADHD. Levels of dopamine are linked to other important neurotransmitters e.g. norepinephrine (noradrenaline) and serotonin amongst others. Norepinephrine is involved in our working memory and sustaining attention. Serotonin helps regulate dopamine activity in the brain.

All types of stimulant medication target dopamine and norepinephrine receptors, preventing them from mopping up dopamine and norepinephrine. Some also increase the level of serotonin in the brain, as well as levels of other neurotransmitters. Atomoxetine, a non-stimulant medication, prevents norepinephrine from being reabsorbed.

We are still researching exactly how these types of medication work, and the complex biology of ADHD. We know that people with ADHD do not all have the same brain changes and there is a lot of variety that we do not yet understand.

ADHD Medication: Side Effects and Long Term Risks

All medication comes with the potential for side effects and this needs careful monitoring for people with ADHD. Before starting any ADHD medication a baseline physical assessment is required. This is where your psychiatrist will ask about other physical and mental health conditions, and measure your weight, BP and heart rate. A full discussion about the risks vs benefits of medication is important before starting any new treatment. We cover three safety considerations below:

Cardiovascular Disease

Both stimulant medications and atomoxetine can raise your heart rate and blood pressure (BP).

A large study published in 2024 in the Journal of the American Medical Association (JAMA) found that long term use of ADHD medication remained relatively low risk, with no evidence of increase in strokes or ischaemic heart disease. It did, however, find that there was a small increased risk of high blood pressure and coronary artery disease with chronic use.

The study did not look at all other factors that might affect cardiovascular risk (for example we don’t know how healthy the participants were or whether they smoked) but it is supports the use of regular monitoring to allow us to treat ADHD safely.

If you already have cardiovascular disease before you start treatment then it is important to make sure this is well managed. NICE guidelines recommend treating pre-existing high blood pressure before trialling stimulants.

ADHD and Psychosis

Recently there has been concern that ADHD medication can increase your risk of developing psychosis or bipolar affective disorder.

The research here is not definitive. Some increased risks of developing psychosis or mania have been shown in large studies, but they have all had other factors that could have influenced the results. Often it is unclear what doses people were taking or whether they were using other substances.

The biggest meta-analysis we have was published in 2025, again in JAMA, and focused on children with a median age of 12, who were started on stimulants. It found there was a very small risk of developing a psychotic illness with stimulant use, amphetamines were seen as higher risk than methylphenidate, and incidence was higher in females.

We do not have good quality evidence for the risks associated with starting stimulants in adults. It is reasonable to say that there is a small theoretical risk, due to the dopamine-boosting effects of the medication. This risk would definitely be increased if people took doses that were higher than prescribed or combined their medication with illicit substances.

Stimulants and Addiction

Stimulants are controlled drugs in the UK. This means that their prescription is strictly regulated by the government because of concerns about addiction potential or misuse.

These concerns are historical but not actually supported by recent research. Stimulant use for people with ADHD does not increase the risk of developing an addiction to medication or a substance use disorder.

In fact, people with untreated ADHD are more at risk of developing an unhealthy dependence on substances, as a way to self-soothe and regulate their symptoms. Proper treatment of ADHD has actually been shown to be protective against these risks.

Benefits of ADHD Medication

The aim of medication is to reduce the symptoms of ADHD, and make life more manageable. Stimulant medication is the most effective option for ADHD. It improves concentration, attention and emotional regulation, whilst reducing hyperactivity and impulsivity.

People report that they find it easier to pay attention in conversations, focus for longer periods of time, start tasks they had been putting off and be more organised. They experience less restlessness and feel calmer. These effects are instantaneous with stimulants, although some people may require titration to a higher dose before the effect is noticeable.

Atomoxetine can also be helpful in cases where stimulants cannot be used or are not tolerated. It helps control impulsive behaviour and aids concentration. Research has shown that it can also be helpful for people with co-morbid anxiety, but it does not impact emotional regulation. Atomoxetine needs to be taken everyday for several weeks before it starts to be effective.

Efficacy of medication can be affected by the presence of other comorbid illnesses, e.g. anxiety, and how well-tolerated it is. It is estimated that 58-70% of adults with ADHD will have an improvement in symptoms with stimulants, and 40-56% with atomoxetine.

Medication is a useful part of a treatment plan for ADHD. The National Institute for Health and Care Excellence (NICE) recommends medication is offered to all adults with significant impairments in functioning, but notes environmental modifications are an important first step. A joint approach with non-pharmacological strategies is important to help people thrive with their ADHD.

Medication does not remove symptoms of ADHD completely nor does it change people’s personalities, where features of ADHD can also be great strengths. A good management plan celebrates strengths, whilst helping people manage the trickier aspects of their lives.

If you have been diagnosed with ADHD and want to explore medication options then we offer medication initiation and titration. These appointments allow you to decide if medication is right for you.

What ADHD medication is prescribed in the UK?

Over the last few years there have been difficulties accessing ADHD medication due to supply issues and increased demand.

At The Mind & Psychiatry Clinic we do our best to keep updated with what is available so we can provide you with consistent treatment. We acknowledge, however, that supply issues are outside our control and can change quickly. We work with Pharmacierge, a private pharmacy provider, who can deliver medication around the UK if there are issues with your local pharmacy.

Currently the following types of stimulant medication are licensed in the UK for treatment of ADHD in adults:

• Methylphenidate
• Dexamfetamine
• Lisdexamfetamine

Stimulants are available in immediate-release and modified-release forms. Immediate release medication is broken down by your liver quickly and the effect lasts for 4-6 hours. Modified-release preparations take longer to be processed so the effect is less instant and lasts longer. This can be really useful for people who have a 9-5 job or need to attend lectures during the day. Atomoxetine is available in one preparation, which is taken daily and builds up in the body over time, giving a gradual effect.

We often get asked questions about pricing of medication. Pharmacies decide how to price their private prescriptions independently, so we cannot give exact figures. In general immediate-release preparations are cheaper than the modified-release versions, and methylphenidate is cheaper than lisdexamfetamine. In 2026, the initial prescribed dose of modified-release methylphenidate costs around £50-60 per month, whereas the equivalent for lisdexamfetamine starts at around £80 per month.

ADHD Medication: Next Steps and Getting Started

At The Mind & Psychiatry Clinic in Edinburgh we offer comprehensive treatment plans, designed to make starting medication simple and straightforward. If you are unsure whether you have ADHD then we recommend a full assessment.

We are also happy to offer medication initiation and titration to people with an existing diagnosis of ADHD. It often takes people a couple of appointments to find the medication and dose that is right for them. We make the process simple by offering an initial 6 month treatment bundle.

Want to learn more about ADHD? Check out our other blogs on ADHD in Women and tests for ADHD.

Dr Alexandra Pittock is a consultant psychiatrist, and co-founder of The Mind & Psychiatry Clinic. She provides private psychiatric services in Edinburgh and via secure video consultation across the UK.