Why So Many Adults Struggle With ADHD Medication in the First Year: What a New Study Reveals

Kristen McClure

Dec 07, 2025

Medication is often the first treatment support offered to adults after an ADHD diagnosis. Some people really find great benefit from it.

Yet almost half stop taking it within the first year.

A new study helps explore why.

Researchers followed adults through their first year of medication and listened closely to their lived experiences.

Their findings show that sticking with treatment is not just about whether the medication “works.” It is about the emotions, expectations, side effects, and, of course, systems surrounding it.

Let’s take a look at what this first study of it’s kind found.

1. What the Study Wanted to Understand

The researchers had one central question:

Why do adults stop or struggle with ADHD medication during the first year?

Instead of using surveys or numbers alone, they wanted the full story — what people were thinking, feeling, and navigating as they moved through diagnosis and treatment.

2. How the Study Was Done

The researchers interviewed 25 adults, ages 23 to 57, who were newly diagnosed ADHD and started medication.

Participants discussed:

  • their expectations
  • emotional reactions to diagnosis
  • side effects
  • titration challenges
  • interactions with healthcare providers
  • decisions to continue, pause, or stop medication

This was a qualitative study.

This means the researchers analyzed personal narratives rather than numerical data. This approach helps uncovers the why.

Concepts to understand

Titration

The months-long process of adjusting medication dose and type. It often includes trial-and-error, raising medication, monitoring side effects, and dealing with uncertainty.

Adherence

Whether someone takes medication as prescribed. Traditionally thought of as a good or bad behavior, this study points to so much more.

Adherence is shaped by support, side effects, identity, and daily demands.

Late Diagnosis Emotions

Many adults go through relief, grief, anger, confusion, and self-doubt at the same time. These emotions strongly shaped how they approached medication.

4. Four Major Themes

These themes reveal the real-world experience of ADHD adults during the first year of treatment.

⭐ Theme 1: The Emotional Impact of Diagnosis

Adults did not enter treatment from a neutral place. They were still processing what their diagnosis meant.

Common reactions included:

  • Relief: having an explanation
  • Doubt: questioning whether they “really” had ADHD
  • Anger or sadness: realizing how long they went unsupported
  • Acceptance: slowly integrating ADHD into their identity

Takeaway:

These emotions shaped how hopeful, hesitant, or overwhelmed people felt about starting medication.

⭐ Theme 2: Expectations Strongly Influenced the Medication Journey

Many adults hoped medication would dramatically improve their daily life. Some expected large changes in focus, productivity, calmness, or emotional regulation.

Medication helped but rarely met the level of transformation people imagined.

When expectations were too high:

  • improvements felt too small
  • side effects felt too disruptive
  • disappointment led people to question whether the medication was worth continuing

Takeaway:

Realistic, grounded expectations make the medication process less confusing and less discouraging.

⭐ Theme 3: Support From Healthcare Providers Was Inconsistent

This theme was one of the strongest findings.

Participants described:

  • long response times
  • unclear instructions
  • difficulty contacting clinics
  • poor coordination between general practitioners and specialist services
  • minimal support after side effects appeared

Some felt well-supported; many felt alone.

Takeaway:

People continued medication when they felt guided and supported. They stopped when the system left them to figure it out alone.

⭐ Theme 4: Adults Constantly Balanced Benefits and Costs

People experienced meaningful benefits:

  • better focus
  • calmer thinking
  • improved work functioning
  • more follow-through on tasks

But they also faced real costs:

  • appetite and sleep changes
  • anxiety
  • headaches
  • emotional “crashes” when medication wore off
  • feeling “not like themselves”

Adults made ongoing decisions, week by week:

Is the benefit worth the side effects and effort right now?

Takeaway:

Continuing medication was not a one-time decision — it was an evolving, daily judgment call.

5. A Key Pattern: Many Adults Used “Flexible Dosing”

Participants frequently adjusted medication based on:

  • work demands
  • creativity needs
  • emotional capacity
  • sensitivity to side effects

Flexible dosing helped people navigate real life, yet is often labeled by professionals as “non-adherence.”

Takeaway:

Flexible dosing was an adaptive strategy, not a sign of failure.

6. What Adults Wanted Most

Across the study, participants consistently asked for support beyond medication:

  • ADHD-informed therapy
  • guidance for emotional regulation
  • help managing shame and self-criticism
  • support with organization and planning
  • accessible follow-up during titration
  • clinicians who understood ADHD as a lived experience

Medication helped some things, but not everything.

Takeaway:

Adults wanted whole-person support, not a medication-only model.

7. Why This Study Matters for ADHD Advocacy

This research makes something very clear:

The system is failing adults.

The first year of ADHD treatment is complicated — emotionally, physically, and logistically.

Success depends not only on the pill, but on:

  • support
  • clear information
  • realistic expectations
  • emotional processing
  • access to care
  • life demands
  • flexibility

For advocates, this means pushing for care models that recognize the full reality of ADHD adulthood, not narrow definitions of “compliance.”

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Key Insight to Leave With

Medication outcomes improve when adults are supported, understood, and guided — not judged or left on their own. If we want to continue to provide this as an option for support we need to explore this.

This study gives us evidence to advocate for that kind of care.

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