What is ADHD Medication? And What Does it Do?

What is ADHD (Attention Deficit Hyperactivity Disorder) Medication and What Does It Do? 

If you've recently been diagnosed with ADHD or are considering medication, you've probably got a lot of questions running through your mind. What exactly is ADHD medication? How does it work? Is it safe? Will it take away my sparkle?

As a trained biologist with ADHD, I like to understand the science behind what's actually happening in our brains, and how medication can help. And if there’s one thing that I’m super passionate about - it’s helping people to understand what, why and how ADHD is affecting them & what kind of help is on offer. 

One thing that always surprises me is how little people know about their diagnosis & the medication they take for it. Recently I’ve come across a lot of people who are either going through the diagnosis process or who have been diagnosed & treated with ADHD medication - but don’t actually understand what specifically is different about their brain that causes their symptoms. Further to this, they don’t know what the purpose of ADHD medication is and how it works to help them - often leading to false information and scare mongering from those that do not understand. 

Understanding Your ADHD Brain: The Chemistry Behind the Chaos

Before we talk about medication, let's talk about what's going on upstairs in that big ol’ brain of yours. Your ADHD brain isn't broken - it's just wired a bit differently, and that wiring has everything to do with brain chemicals called neurotransmitters.

Think of neurotransmitters as tiny messengers that carry signals between brain cells (neurons). Two of the most important ones involved in ADHD are:

Dopamine – Often called the "motivation molecule", dopamine helps you:

• Stay focused on tasks (even boring ones)
• Feel motivated and rewarded
• Control impulses
• Regulate movement

Norepinephrine – This chemical is all about alertness and helps with:

• Paying attention
• Working memory (holding information in your mind while you use it)
• Organisation and planning
• Regulating arousal and wakefulness

Now we know a bit more about these key neurotransmitters, we can delve into what’s happening in your brain that makes you different to someone who went through ‘neurotypical’ brain development. 

Research shows that ADHD brains have lower levels of these neurotransmitters (not necessarily that you make less of them - but that they are not “available to use”), particularly in an area called the prefrontal cortex - the brain's "CEO" that's responsible for executive functions like planning, decision-making, and impulse control.

Keyword Checkpoint: 

Executive functions = Executive functions are the brain's high-level management systems that control planning, decision-making, impulse control, working memory, and the ability to organise and complete tasks - essentially, your brain's CEO functions.

Imagine trying to have a conversation in a noisy room where you can't quite hear the other person. That's kind of what's happening in your brain. The signals (dopamine and norepinephrine) aren't strong enough, so messages don't get through clearly. This is why you might struggle with focus, organisation, and impulse control - not because you're lazy or not trying hard enough, but because your brain chemistry is making it genuinely harder for those signals to fire properly.

What ADHD Medication Actually Does

Now that you understand the chemistry, let's talk about what medication does. 

Spoiler alert: it doesn't magically "cure" ADHD or fundamentally change who you are. 

Instead, it helps to increase those neurotransmitter levels so your brain can function more efficiently. 

ADHD medications fall into two main categories: stimulants and non-stimulants. 

Now, this is the bit that always trips people up…you might be thinking (just like my friend who’s actually just started the titration) - "wait, stimulants for hyperactivity?" It sounds counterintuitive, but stay with me. 

Stimulant Medications: The First-Line Treatment

Stimulants are the most commonly prescribed ADHD medications, and they've been used safely for over 50 years. The two main types are: 

• Methylphenidate-based medications (like Ritalin, Concerta XL, Medikinet XL, Xaggitin XL, Delmosart MR, Equasym XL, Meflynate XL)
• Amphetamine-based medications either in the form of dexamphetamine or lisdexamphetamine (like Elvanse, Dexedrine)

How they work: Both types primarily work by blocking the "reuptake" of dopamine and norepinephrine. Here's what that means in plain English: 

Normally, after neurotransmitters deliver their message, they get sucked back up (reuptake) by the neuron that released them - kind of like a vacuum cleaner cleaning up after a party. Stimulants block this vacuum cleaner, allowing dopamine and norepinephrine to hang around longer in the spaces between neurons (called synapses). This means more of these chemicals are available to send signals, which strengthens the communication between brain cells. 

Think of it like turning up the volume on that conversation in the noisy room. The signals finally get through loud and clear.

Research using brain imaging (PET scans) shows that therapeutic doses of stimulants increase dopamine levels primarily in the prefrontal cortex - that CEO region we talked about - while having much less effect on other brain areas. This targeted action is why properly prescribed stimulants help you focus without making you "high" or euphoric.

The "paradox" explained: You might wonder why stimulants calm hyperactivity instead of making it worse. It's not actually paradoxical when you understand the mechanism. Low doses of stimulants preferentially increase neurotransmitters in your prefrontal cortex, which then does its job better: regulating your behaviour, attention, and impulses. When your brain's CEO can finally function properly, you can sit still, focus, and think before acting. 

Hyperactivity in your body or your mind is effectively your brain screaming at you that it doesn’t have the stuff it needs to function properly - think of a baby crying in the middle of the night because it’s hungry. When you give it what it needs - in this case the baby some milk and your brain the neurotransmitters it needs - everything becomes quiet. 

Short-Acting vs. Long-Acting: Duration Matters

ADHD medications come in different formulations that last different amounts of time depending on your needs & wants for your medication journey. 

Short-acting medications last about 3-6 hours and are taken multiple times per day. They offer flexibility (you can control when you need coverage) but require remembering multiple doses. 

Long-acting medications last 8-16 hours from a single morning dose. Most long-acting formulations provide coverage for 10-12 hours, though some newer options can last up to 16 hours.

Some people use a combination - a long-acting medication for the day with a short-acting "booster" in late afternoon if needed. While others will split doses throughout the day to ensure better coverage. 

Important Note - There is no right or wrong type of medication or coverage - there is simply what works best for you (and has been approved by your doctor/prescriber). 

Non-Stimulant Medications: The Alternative Route

Non-stimulants work differently and are typically considered when stimulants don't work well, cause intolerable side effects, or if you have certain coexisting conditions like anxiety or tics. The main FDA-approved non-stimulants include:

• Atomoxetine (Strattera) – A selective norepinephrine reuptake inhibitor that primarily boosts norepinephrine levels throughout the day
• Guanfacine ER (Intuniv) and Clonidine ER (Kapvay) – Alpha-2 agonists that work by stimulating specific receptors in the prefrontal cortex to strengthen brain networks

How they differ: Non-stimulants generally take longer to work (usually taking several weeks to reach full effect) compared to stimulants (which work within 30-90 minutes). They also tend to have smaller effect sizes, meaning they may not work quite as powerfully for many people. However, they offer important advantages: they last 24 hours, don't carry abuse potential, and can be beneficial for people with certain comorbid conditions.

While non-stimulant medications have been reported to reduce symptoms, studies conclude that stimulant medications are the most effective treatment for ADHD. 

Which Medication Is Right for You?

This is where it gets personal, because there's no one-size-fits-all answer and you should work with your doctor/prescriber closely to find out what’s best for you. 

About 70-80% of people respond well to stimulants overall, but you might respond better to one type than another, or you might need a non-stimulant. This is why the titration process and working closely with your doctor/prescriber is so important. 

Factors your doctor will consider:

• Your specific symptoms and their severity
• Coexisting conditions (anxiety, depression, tics, substance use history)
• Your daily schedule and when you need symptom coverage
• Previous medication trials and responses
• Potential for medication misuse or diversion
• Personal preferences (once-daily vs. multiple doses, pills vs. liquid)
• How you personally respond to the medication

Note - Before being prescribed a stimulant, your provider may order an electrocardiogram (EKG) screening to avoid complications from a previously undetected heart rhythm issue.

The TLDR: What You Need to Know

ADHD medication works by increasing the availability of dopamine and norepinephrine in your brain, particularly in the prefrontal cortex, helping your brain's executive function systems work more efficiently. It's not a magic fix, and it doesn't work for everyone, but for many people, it's genuinely life-changing. 

The evidence base is solid: ADHD medications are among the most effective treatments in all of medicine, with effect sizes comparable to or greater than many medications used for other conditions. When properly prescribed and monitored, they're safe for both short and long-term use. 

Key takeaways:

1. ADHD medication addresses real neurochemical differences in your brain - it's not a crutch, a cheat, or a cop-out
2. Stimulants are the first-line treatment and work for about 70-80% of people, but non-stimulants offer important alternatives
3. Finding the right medication and dose takes time - be patient with the titration process and communicate openly with your doctor
4. Side effects are usually mild and manageable, and serious complications are rare
5. How long you take medication is your choice - there's no "right" duration, and you can stop or restart as needed

Medication works best as part of a comprehensive approach that might include therapy, coaching, lifestyle changes, and accommodations

Taking the Next Step

If you're considering medication, the best thing you can do is have an honest conversation with a healthcare provider who specialises in ADHD. Come prepared with:

• A list of your symptoms and how they impact your daily life
• Information about any other medications you take
• Questions about what to expect
• Any concerns or fears you have

Remember: seeking treatment for ADHD isn't about changing who you are. It's about giving your brain the support it needs to function at its best, so you can be fully, authentically yourself (just with less struggle and more capacity to do the things you care about). 

Your ADHD brain isn't broken. Sometimes it just needs a little chemical optimisation to reach its full potential (through no fault of your own).