The inability to stay focused, complete tasks, and meet everyday responsibilities can be a challenge for children and adults suffering from ADHD.
Fortunately, there are many medications available today that are effective for treating ADHD symptoms and improving the overall quality of life for people with the condition. But while these medications can provide remarkable improvements, they can also come with side effects that anyone taking them should be aware of.
Whether you're already taking ADHD medication or only considering it, this article will help you understand the most common ADHD medication side effects to watch out for, the key factors that contribute to side effects, and when to seek help from an ADHD specialist.
Contact The ADHD Centre to find a medication and treatment plan tailored to your needs.
What is ADHD Medication?
ADHD medication is an essential component of treating attention deficit hyperactivity disorder in children and adults. ADHD medication works by altering brain chemistry, to improve focus and reduce impulsivity and hyperactivity. Many people with ADHD see marked improvements in their symptom management simply by taking the right medication.
Stimulant medications
Stimulants are the most commonly prescribed ADHD medications in the UK. Stimulant medications work by increasing dopamine and noradrenaline levels, improving attention and reducing hyperactivity. Different stimulant medications in the UK include methylphenidate hydrochloride (eg., Ritalin, Concerta) and amphetamines (eg., Elvanse).
While stimulant medication can be effective for ADHD, taking the wrong stimulant medication or an incorrect stimulant dose can lead to side effects like decreased appetite, sleep problems, and weight loss.
Non-Stimulant Medications
Non-stimulant medications are recommended for those who don't respond well to stimulants or experience severe side effects. An example of a non-stimulant medication is atomoxetine - a noradrenaline reuptake inhibitor.
Non-stimulants work by targeting specific receptors in the brain. For example, atomoxetine prevents noradrenaline from being reabsorbed in the brain, leaving more available for the brain to use – thereby improving attention and reducing hyperactivity.
Non-stimulants generally have a lower risk of the side effects commonly associated with stimulants, but they may take longer to have an effect and come with their own potential side effects.
Both types of medications can reduce ADHD symptoms, but their different mechanisms of action means they have different side effects. Understanding these differences is crucial for patients and ADHD specialists in making informed decisions about ADHD treatment.
Contact The ADHD Centre to determine the right medication and medication dosage for your condition.
Benefits of ADHD Medications
Medication can significantly improve the quality of life for adults and children struggling with attention deficit hyperactivity disorder (ADHD). When properly prescribed and managed by an ADHD psychiatrist, medications can:
- Enhance focus and concentration
- Reduce hyperactivity and impulsivity
- Support emotional regulation
By modifying brain chemicals that cause ADHD symptoms, ADHD medication can reduce distractions and improve cognitive performance, making it easier for people with ADHD to manage their time, focus on important tasks, and control impulsive behaviours.
The positive effect of medication on ADHD symptoms means that people with ADHD can function better at school or work. The ability to focus, regulate emotions, and control impulses can also boost self-esteem in social situations and make it easier to maintain healthy relationships.
Common ADHD Medication Side Effects
Trouble Sleeping
ADHD medications, especially stimulants, can affect the body's natural sleep cycle by increasing alertness and activity in the central nervous system.
What to watch for: Difficulty falling asleep, restless sleep, or waking up earlier than desired.
When to seek help: If sleep problems persist for more than a few weeks or significantly impact daytime functioning, consult a registered ADHD psychiatrist who can adjust medication timing or dosage, or recommend strategies to improve sleep problems.
Decreased Appetite
Stimulant medications affect the signals in the brain responsible for hunger and increase metabolism, reducing appetite in some people.
What to watch for: Skipping meals, feeling nauseous at mealtimes, or unusual weight loss.
When to seek help: If you have unexplained weight loss or any symptoms of nutritional deficiency, seek the guidance of an ADHD specialist who can adjust medication or recommend nutritional supplements.
Mood Changes
Since ADHD medications can affect brain chemical levels, this can sometimes lead to changes in mood or emotional regulation.
What to watch for: Increased irritability, anxiety, mood swings, or persistent depression.
When to seek help: If mood changes are severe, persistent, or impact daily life, you may need a dosage adjustment (double dose or lower dose) or a different medication.
Delayed Growth
Some ADHD medications may temporarily slow growth for children and adolescents by affecting appetite and influencing growth hormone production.
What to watch for: Slower than expected height or weight gain during regular check-ups.
When to seek help: Typically, growth delays are only temporary and children will catch up in gaining growth. If growth consistently falls below the expected range, an ADHD specialist may recommend a different medication or alternative treatments.
Nausea and Headaches
Nausea and headaches often occur when the body is adjusting to a new medication or when a person changes their eating habits.
What to watch for: Persistent stomach pain or discomfort, vomiting, or frequent headaches.
When to seek help: Seek the support of an ADHD specialist if nausea or headaches don't subside after the initial adjustment period of 1 to 2 weeks or if they interfere with daily activities.
High Blood Pressure
Stimulant medications can increase heart rate and constrict blood vessels, potentially leading to elevated blood pressure.
What to watch for: Consistent readings of elevated blood pressure during check-ups.
When to seek help: Seek immediate help if you notice blurred vision, chest pain, or other signs of high blood pressure, as this condition can lead to serious consequences such as a heart attack or sudden cardiac death.
The Factors Contributing to ADHD Medication Side Effects
The occurrence and severity of side effects from ADHD medication can vary greatly, as side effects depend on many different factors. Some of the most common factors contributing to medication side effects include:
- Dosage: Higher doses or a missed dose can increase the likelihood of side effects.
- Medication type: Stimulants and non-stimulants have different side effect profiles and interact with each individual differently.
- Age: Children, adolescents, and adults can experience different side effects with varying severity.
- Co-existing conditions: Pre-existing health issues can also influence a person's response to ADHD medication.
- Diet and lifestyle: Nutrition, sleep patterns, and stress levels can impact medication effectiveness and side effects.
At The ADHD Centre, we consider each patient's unique circumstances when prescribing medication. Through careful assessment, regular monitoring, and open communication, we work to identify the specific factors affecting each patient's response to medication.
When patients experience side effects, our consultant psychiatrists can adjust dosages, change medication types, and recommend lifestyle modifications. We can also incorporate complementary therapies like CBT or mindfulness therapy.
Treating ADHD with Medication and Therapy
ADHD medications work best when part of a multifaceted treatment plan. At The ADHD Centre, we perform a comprehensive assessment to diagnose ADHD. We will examine your ADHD symptoms, family history, and medical history to determine the best course of treatment and the right medication.
Through ongoing support, we work diligently to resolve any medication side effects such as appetite suppression, high blood pressure, or suicidal thoughts. If the medication wears off, we can prescribe a different medication or increase the dose.
Our comprehensive approach to treating ADHD combines medication management with evidence-based therapies and lifestyle recommendations, optimising treatment outcomes for every patient.
Contact The ADHD Centre to find the right ADHD medication for you.




