ADHD Medication Doesn't Seem to Work: Why?
Where to look if your medication is not giving the effect you expect: dose, form, timing, the diagnosis itself, co-occurring conditions and what you expect from it.
Behind this sentence there can be two different situations. The first is that the medication really falls short. The second is that something the medication does not do is being expected of it.
Every change made without separating the two is a search in the wrong place. This article sets out the order; the decisions are to be made with your doctor.
Expectation first
Methylphenidate and similar medications prolong the action of two messengers in the circuit that directs attention. The result is that managing attention becomes easier.
What they do not do:
- They do not build systems. Calendar, list, reminder: you still have to set these up yourself.
- They do not tell you what to do. The vagueness of a vague task is not solved by medication. I wrote about this distinction in the article on task paralysis.
- They do not produce motivation. They do not turn a task you do not want to do into one you want to do.
- They do not repair the past. The mark left by years is not something that a dose fixes.
Many people who take medication are in fact experiencing a lack of systems and mistaking it for the medication's failure. This is also why the question of medication or therapy is meaningless: the two look after different jobs.
Medication makes managing attention easier. What to manage, you still decide yourself.
The dose adjustment may be incomplete
Treatment starts with a low dose and is adjusted gradually (NICE NG87; Kooij et al., 2019). A verdict of "it doesn't work" delivered in the middle of this process is an early verdict.
Not going to check-ups is the most common reason this process is cut short. The first dose does some of the work, the appointment gets postponed, and the adjustment stays where it is.
The form and timing may not fit
The same active ingredient produces a different day in different release forms.
- If the morning dose is taken late, the hours when it is needed may be missed.
- A long-acting form may not last into a task that peaks in the evening.
- With a short-acting form, if the second dose is forgotten, a gap is left in the middle of the day.
I explained the differences between forms in the articles on Ritalin and Medikinet and Concerta.
The way to understand this is to write down when during the day you struggle. 11 in the morning, 3 in the afternoon, 7 in the evening? This single piece of information is the basis for the decision on timing and form.
Sleep and basic loads
With sleep debt, no dose gives the expected effect. Attention is directly tied to sleep.
The same goes for food and movement; they do not replace the medication, but when they are lacking the medication's job gets harder.
If your appetite shuts down while you are on medication and the day passes without meals, the afternoon crash may come from hunger and not from the medication. I wrote about this in the article on appetite.
There may be a co-occurring condition
Depression, anxiety disorders, sleep apnea, thyroid problems, iron deficiency and post-trauma conditions all affect attention.
ADHD treatment does not treat any of these. If there is a condition standing in the background, the improvement expected from the medication does not come, and this gets read as the medication being inadequate.
For the distinctions you can look at the articles ADHD or anxiety, ADHD or bipolar and ADHD or trauma.
The diagnosis itself
A possibility that is rarely talked about: the diagnosis can be reassessed.
Some of the symptoms are shared across more than one condition. Getting no response to medication is information for the doctor too, and it can lead to the diagnosis being reviewed.
This does not mean "there is nothing wrong with you." It means that finding the right name is the precondition for finding the right treatment.
What to do: the order
- Write for two weeks. The time of the dose, the hours of the day when you struggle, sleep, appetite, events specific to that day.
- Separate the expectation. Is what cannot be done an attention problem or a lack of systems?
- Go to the check-up. The adjustment not having been completed is the most common reason.
- Ask about co-occurring conditions. Sleep, mood, thyroid, iron.
- Do not change the dose on your own. I wrote why in the article on dose increases.
What stays with me
An easy mistake to fall into is quietly dropping the medication. The person tries it for a few weeks, it does not work, they put the box in a drawer and tell no one.
Yet in this picture information is valuable. The sentence "at this dose, at this time, it made no difference for these tasks" is what determines the next step. A box sitting in a drawer says nothing.
The assessment and the decision are with the doctor. This article is so that you can see which step of the order you are on.
Frequently asked questions
- Does ADHD medication give motivation?
- It does not. Medication makes managing attention easier; it does not produce motivation, finish tasks or build systems. If what you expect is one of these, the medication seems ineffective.
- Can a decision be made before the dose adjustment is complete?
- It should not be. The doctor starts from a low dose and raises it gradually, and in the middle of these steps the effect not yet being fully visible is expected.
- Do the form and timing of the medication change the effect?
- They do. A long-acting form taken in the morning can fade by late afternoon; the time of day when you need your attention determines this choice.
- If the medication does not work, could the diagnosis be wrong?
- It could, but this is the last possibility to look at. First expectation, dose, form and timing, sleep debt and another co-occurring condition are ruled out. Reassessing the diagnosis comes up after these.