Why do energy surges sometimes feel like side effects of ADHD meds? 

It’s common for people starting or adjusting ADHD medication to notice bursts of energy, restlessness, or a sense of being “wired.” According to NHS guidance, these sensations reflect how stimulants and some non-stimulants increase dopamine and norepinephrine, the brain chemicals responsible for focus, motivation, and alertness. The difference between a helpful boost and an uncomfortable surge often lies in dose, formulation, and individual sensitivity. 

How ADHD medication influences brain energy 

Stimulant medications such as methylphenidate and amphetamines increase dopamine and norepinephrine in key brain regions, improving attention and alertness. This rise in activity can also heighten arousal and physical energy, leading to sensations of restlessness or racing thoughts if levels climb too quickly. Non-stimulants like atomoxetine increase noradrenaline more gradually, creating a subtler effect but still occasionally causing agitation or insomnia in sensitive individuals (PubMed Central, 2025). 

Research in Progress in Neuro-Psychopharmacology & Biological Psychiatry notes that increased catecholamine activity “enhances cognitive performance and arousal but may tip into anxiety or irritability if dysregulated” (ScienceDirect, 2021). 

Recognising the difference between focus and overstimulation 

Therapeutic activation helps people feel more awake, organised, and productive, an intended benefit of treatment. In contrast, overstimulation feels uncomfortable, with jitteriness, restlessness, or difficulty sleeping. These effects are more likely when doses are too high, titration is rapid, or immediate-release medication peaks quickly. The NHS Formulary advises clinicians to “start at the lowest effective dose and titrate slowly, monitoring for insomnia, agitation, and mood change.” 

Managing energy surges safely 

If energy surges feel overwhelming, switching to an extended-release formulation can help by spreading medication release over several hours. Taking medication after food, avoiding caffeine, and maintaining consistent sleep and hydration also stabilise energy. NICE NG87 guidelines recommend ongoing monitoring and dose adjustments during early titration to balance focus with comfort. 

Key takeaway 

ADHD medications can make you feel more energised because they activate the same brain systems that drive attention and motivation. When that activation rises too quickly, it can feel like overstimulation rather than focus. With the right dose, timing, and formulation, these energy changes can become steady, manageable, and supportive of your daily rhythm. 

Harriet Winslow, BSc

Author

Harriet Winslow is a clinical psychologist with a Bachelor’s in Clinical Psychology and extensive experience in behaviour therapy and developmental disorders. She has worked with children and adolescents with ADHD, autism spectrum disorder (ASD), learning disabilities, and behavioural challenges, providing individual and group therapy using evidence-based approaches such as CBT and DBT. Dr. Winslow has developed and implemented personalised treatment plans, conducted formal and informal assessments, and delivered crisis intervention for clients in need of urgent mental health care. Her expertise spans assessment, treatment planning, and behavioural intervention for both neurodevelopmental and mental health conditions.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.