If you’re a woman with ADHD taking medication, you’ve probably noticed something frustrating. Your medication works brilliantly for three weeks of the month. Then, in the week before your period, it’s like you’re not taking anything at all.
Your focus disappears. Your irritability spikes. The executive function you’ve built up collapses. And you’re left wondering if your medication has stopped working or if you’re just imagining it.
You’re not imagining it. And there’s groundbreaking research from 2023 that explains exactly why this happens and what women with ADHD are doing about it.
In 2023, researchers in the Netherlands published findings that confirmed what women with ADHD have been saying for years. A study published in Frontiers in Psychiatry followed nine women with ADHD who increased their stimulant medication dosage specifically during the premenstrual week.
The results? All nine women experienced improved ADHD and mood symptoms with minimal side effects. Their premenstrual inattention, irritability, and energy levels improved dramatically. The symptoms during their premenstrual week finally resembled the rest of their cycle.
Every single woman in the study chose to continue with the elevated premenstrual dosing long term, some for up to two years.
This wasn’t a placebo effect. This was addressing a real biological pattern that affects how ADHD medication works in women’s bodies.
The answer lies in hormones, specifically oestrogen and its relationship with dopamine.
ADHD is fundamentally a dopamine regulation disorder. Stimulant medications work by increasing dopamine availability in the brain, particularly in the prefrontal cortex, which controls attention, impulse control, and executive function.
But here’s what most prescribers don’t tell you: oestrogen directly affects dopamine function in the brain.
Throughout your menstrual cycle, oestrogen levels fluctuate dramatically. In the first half of your cycle (follicular phase), oestrogen rises. In the second half (luteal phase), particularly the week before your period, oestrogen drops sharply.
When oestrogen drops, several things happen:
For women with ADHD, this creates a compounding problem. You already have lower baseline dopamine than people without ADHD. When oestrogen drops, your dopamine function drops further. Even though you’re taking the same medication dose, there’s less dopamine activity in your brain.
This is why your medication that worked perfectly on Monday feels completely ineffective by Friday before your period.
According to the 2023 research and clinical observations from ADHD specialists, women with ADHD report specific patterns during the premenstrual week:
Cognitive Symptoms:
Emotional Symptoms:
Physical Symptoms:
Many women also meet criteria for Premenstrual Dysphoric Disorder (PMDD), which affects 31% of women with ADHD compared to about 5% of women without ADHD.
If you’re reading this in Birmingham or elsewhere in the UK, you might wonder why your GP or psychiatrist never mentioned this pattern. The truth is, female-specific ADHD treatment remains woefully under-researched and under-discussed.
The NHS England ADHD Taskforce has highlighted the need for better understanding of ADHD in women, but practical guidance on menstrual cycle considerations remains limited. Most ADHD treatment guidelines are based on research conducted primarily on boys and men, then applied to women without adjustment.
As Dr Sandra Kooij, lead author of the 2023 study, explained: “In ADHD, we know there is low prefrontal dopamine. If you have low oestrogen as well in the third and fourth week of the cycle, you have doubly low levels of the neurotransmitters and hormones that help you focus and control your mood.”
This explains why women with ADHD have much more severe symptoms during the premenstrual week than during the rest of their cycle.
The 2023 study tracked nine women with ADHD who increased their prescribed psychostimulant medication during the premenstrual period (typically the 7-10 days before menstruation).
Each woman worked with their prescriber to:
Over 6-24 months of follow-up:
The women reported that their premenstrual week finally felt like the rest of their cycle. They could function consistently throughout the month rather than losing a week to dysfunction every cycle.
This approach isn’t appropriate for everyone, and it requires medical supervision. However, you might benefit from discussing premenstrual dose adjustment with your prescriber if you experience:
If you want to explore premenstrual medication adjustment, here’s how to have that conversation:
Before your appointment, track your ADHD symptoms and menstrual cycle for at least two months. Note:
This data makes the cyclical pattern visible and harder to dismiss.
Bring the 2023 study to your appointment. The citation is: de Jong et al., “Female-specific pharmacotherapy in ADHD: premenstrual adjustment of psychostimulant dosage,” Frontiers in Psychiatry, 2023.
Many UK prescribers aren’t familiar with this research yet, so providing the evidence helps move the conversation forward.
Suggest a three-month trial of adjusted dosing during the premenstrual week, with regular check-ins to monitor effectiveness and side effects.
This isn’t about taking more medication overall. It’s about redistributing your medication to match your brain’s changing needs throughout the cycle. Total monthly dosage might actually stay similar.
Some prescribers may be hesitant about this approach because it’s relatively new. If your prescriber is unwilling to consider it, you can:
While medication adjustment can be transformative, it works best as part of a broader cycle-aware approach to managing ADHD.
During the luteal phase, insulin sensitivity changes and blood sugar becomes harder to regulate. This compounds ADHD symptoms.
Strategies that help:
Sleep quality often deteriorates premenstrually, which worsens ADHD symptoms. Prioritise:
Cortisol interacts with sex hormones and dopamine. High stress during the premenstrual week intensifies symptoms.
Practical approaches:
Movement supports dopamine production and helps regulate mood. During the luteal phase:
Working with an ADHD coach who understands female-specific challenges can dramatically improve how you navigate cyclical symptoms. Unlike prescribers who focus on medication, coaches help you develop practical strategies for:
At Kemis Neurodiverse Kingdm in Birmingham, we specialise in ADHD coaching that addresses the whole person, including hormonal and cycle-related patterns. Our approach combines traditional ADHD coaching with understanding of the gut-brain-hormone connection, recognising that women’s ADHD cannot be separated from biological rhythms.
Sessions are available online or in person across the UK, and many clients use Access to Work government funding (up to £66,000 annually) to cover coaching costs.
The 2023 research on premenstrual medication adjustment represents a broader shift in how we understand and treat ADHD in women.
For decades, ADHD research and treatment protocols were developed based almost exclusively on studies of boys and men. This has left women with ADHD underdiagnosed, undertreated, and struggling with symptoms that could be better managed. ADHD UK, the leading charity for people with ADHD in the UK, provides resources and advocacy for better recognition of female-specific ADHD challenges.
Female-specific considerations include:
Understanding these patterns isn’t about making ADHD treatment more complicated. It’s about making it more effective.
If you’re a woman with ADHD struggling with cyclical symptom worsening, you now have options:
Your experience of medication “not working” before your period isn’t in your head. It’s biology. And it’s manageable with the right approach.
The 2023 study was small (nine women) and preliminary, but it opens the door to much-needed research on female-specific ADHD pharmacotherapy.
Future research needs to explore:
Until then, women with ADHD and their prescribers need to work collaboratively, using available evidence and careful monitoring to find what works.
If you’re in Birmingham or anywhere in the UK and ready to stop losing a week every month to ADHD symptoms, start by tracking your cycle and symptoms. Then, have an informed conversation with your prescriber about premenstrual medication adjustment.
And if you want support developing comprehensive strategies for managing cycle-related ADHD challenges, ADHD coaching that understands female-specific patterns can make all the difference.
Book a discovery call with Kemis Neurodiverse Kingdm to discuss how personalised coaching can help you navigate ADHD with hormonal awareness, build systems that work with your biology, and finally experience consistent functioning throughout your entire cycle.
Because you deserve treatment that actually addresses how ADHD shows up in women’s bodies. Not just a one-size-fits-all approach designed for men.
Yes. Research from 2023 confirms that stimulant ADHD medication becomes less effective during the premenstrual week (luteal phase) due to declining oestrogen levels. Oestrogen affects dopamine receptor sensitivity and dopamine production, so when oestrogen drops before menstruation, medication effectiveness decreases even at the same dose.
Some women work with their prescribers to increase stimulant medication dosage during the premenstrual week (typically 30-50% increase). A 2023 study found all nine participating women experienced improved ADHD and mood symptoms with minimal side effects. However, this must be done under medical supervision. Discuss cycle-aware dosing with your psychiatrist or ADHD specialist.
ADHD symptoms worsen premenstrually because dropping oestrogen levels reduce dopamine function in the brain. Since ADHD already involves low dopamine, the additional decrease from hormonal changes creates “doubly low” neurotransmitter levels, intensifying inattention, executive dysfunction, emotional dysregulation, and impulsivity.
Premenstrual Dysphoric Disorder (PMDD) causes severe mood symptoms, anxiety, and depression in the week before menstruation. Women with ADHD are six times more likely to have PMDD than women without ADHD (31% vs 5%). The conditions share underlying mechanisms involving dopamine, serotonin, and hormone sensitivity.
Yes. Tracking your menstrual cycle alongside ADHD symptoms helps identify patterns and guides treatment decisions. Track dates of menstruation, daily ADHD symptom severity, mood changes, and medication effectiveness for at least two cycles. This data helps you and your prescriber make informed decisions about cycle-aware treatment approaches.
Current research focuses on stimulant medications (methylphenidate and amphetamines). Non-stimulant ADHD medications like atomoxetine, guanfacine, and bupropion may also be affected by hormonal fluctuations, but less research exists. Discuss your specific medication with your prescriber to determine if cycle-based adjustments might help.
Yes. ADHD coaching helps you develop cycle-aware strategies including: symptom tracking, identifying personal patterns, adjusting routines based on cycle phase, managing work demands during difficult weeks, implementing nutrition and sleep strategies, and advocating with medical providers. Coaching complements medication by addressing practical management of cyclical challenges.
Kemis Neurodiverse Kingdm offers specialist ADHD coaching in Birmingham and across the UK with expertise in female-specific ADHD challenges including menstrual cycle impacts. Sessions are available online or in person. Many UK clients use Access to Work government funding (up to £66,000 annually) to cover ADHD coaching costs.
Most GPs aren’t familiar with cycle-based ADHD medication dosing as it’s relatively new research. You may need referral to a psychiatrist or ADHD specialist. Bring the 2023 research (de Jong et al., Frontiers in Psychiatry) and symptom tracking data to support your request. Some prescribers may want guidance from specialist ADHD services before implementing cycle-based dosing.
In the 2023 study, women reported improvement in ADHD and mood symptoms during their first adjusted premenstrual week. However, fine-tuning the optimal dosage increase may take 2-3 cycles. Work closely with your prescriber to monitor effectiveness and adjust as needed.
Ready to stop losing a week every month to ADHD symptoms?
Book a discovery call with Kemis Neurodiverse Kingdm to discuss cycle-aware ADHD coaching strategies.
📍 Based in Birmingham | Serving clients across the UK
💻 Online and in-person sessions available
💷 Access to Work funding accepted
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