Stimulant medications are the most commonly prescribed treatments for ADHD in both adults and children. They work by increasing the availability of two important brain chemicals — dopamine and noradrenaline — which regulate focus, motivation, and impulse control.
In ADHD, these neurotransmitters are often underactive in the areas of the brain responsible for planning, decision-making and attention. Stimulants don’t create new dopamine — instead, they help your brain use what it already has more efficiently. The result is clearer focus, steadier energy, and improved control over attention and emotion.
The main types of stimulant medications for ADHD
| Generic name | Common UK brand names | Formulation |
| Methylphenidate | Ritalin®, Medikinet®, Concerta XL®, Equasym XL®, Delmosart®, Xaggitin XL®, Matoride XL® | Short-acting (2–4 hrs) and long-acting (8–12 hrs) |
| Lisdexamfetamine | Elvanse®, Tyvense® | Long-acting (10–14 hrs) |
| Dexamfetamine | Amfexa®, Dexedrine® | Short-acting (4–6 hrs) |
Short-acting stimulants work quickly and wear off within a few hours. They can be useful if you need flexibility or are still finding your optimal dose. Long-acting stimulants release medicine gradually, offering smoother coverage, fewer ups and downs, and a once-daily dose.
Common side effects and how to manage them
| Possible effect | Practical tips |
| Reduced appetite | Eat breakfast before your dose; plan a proper evening meal. |
| Difficulty sleeping | Take medication early in the day; keep caffeine low; establish a wind-down routine. |
| Dry mouth, headache, stomach upset | Take with food and water; usually improves within days. |
| Mild anxiety or irritability | Can occur as medication wears off (‘rebound’) — dose timing or type may need adjusting. |
| Slight rise in pulse or blood pressure | Usually minimal; monitored at reviews. |
Medication Monitoring
We monitor blood pressure, heart rate, and weight at baseline and during titration, and may recommend an ECG if indicated. Once stable, we review every few months to check benefits, side effects and physical health.
What stimulants don’t do
They don’t ‘cure’ ADHD, but help your brain perform at its best. They don’t make you someone else — the goal is to help you use your natural abilities more easily. They aren’t addictive when taken as prescribed, though stopping suddenly can cause a temporary dip in focus and energy.
When to contact us
Contact us if you experience ongoing appetite loss or weight loss, sleep problems, palpitations, chest pain or fainting, or persistent mood changes.
Stimulant medication can be life-changing when used correctly — helping restore focus, calm and confidence. Finding the right dose takes time, and we’ll work with you closely throughout.
