Drug Addiction in Ireland: Understanding the Buzz, Mood Changes, and the Path Back to Stability

Drug addiction can develop quietly and gradually, often beginning as a way of coping. It may start socially, experimentally, or during periods of stress, anxiety, or emotional overwhelm. Over time, it can affect your mood, your sleep, your relationships, your health, and your sense of control.

In my clinical work across Ireland for over 20 years as a Registered Nutritionist, Counsellor, Psychotherapist, Clinical Medical Hypnotherapist, and Advanced Rapid Transformational Therapy practitioner, I often hear similar descriptions at the beginning. The buzz of it, the lift, the sense of ease. For some, substances appear to numb them from the world. For others, they seem to give them confidence and belief in themselves, especially in situations where anxiety or self-doubt would normally take over.

I work with adults, teenagers, and children online across Ireland and internationally, and in person in Adare, Newcastle West, Limerick, Abbeyfeale, Charleville, Kanturk, Midleton, Youghal, Lismore Cork, Dungarvan and Dublin.

At first, it can feel like a solution.

Over time, however, the brain adapts. What once helped can begin to take more than it gives. Understanding this shift is often the first step towards change.

Summary

Drug addiction, also known as substance use disorder, is a condition involving changes in brain chemistry, emotional regulation, behaviour, and physical health.

Substances can create a powerful buzz initially, lifting mood, easing anxiety, and increasing confidence. Repeated use alters the brain’s reward system, often leading to low mood, irritability, anxiety, and emotional instability when not using.

Recovery becomes more achievable when both emotional and biological drivers are addressed. This may include counselling, psychotherapy, clinical hypnotherapy, Rapid Transformational Therapy, and support for sleep, gut health, cravings, hormones, and stress regulation.

Evidence-Informed Approach

This article is written by Claire Russell, a Registered Nutritionist and experienced clinician with over 20 years of practice across addiction, anxiety, trauma, ADHD, gut health, metabolic health, mood disorders, and behavioural change.

It combines clinical experience with evidence from addiction neuroscience, psychiatry, and gut–brain research. The focus is on clear, practical, and clinically grounded guidance for individuals and families across Ireland seeking private support.

When This Topic May Be Relevant For You or a loved one

This article may resonate if you are

  • concerned about drug use becoming more frequent or difficult to control
  • experiencing mood swings, anxiety, or low mood linked to substance use
  • using drugs to cope with stress, trauma, ADHD, or sleep difficulties
  • noticing changes in motivation, confidence, or emotional stability
  • experiencing relationship strain linked to substance use
  • dealing with cravings, withdrawal, or loss of control
  • looking for private addiction counselling or therapy in Ireland

What Drug Addiction Actually Means

Drug addiction, or substance use disorder, involves continued use of a substance despite negative consequences.

It affects the brain’s reward system, particularly dopamine, which regulates motivation, pleasure, and reinforcement.

Drugs artificially increase dopamine levels.

This is what creates the initial buzz.

The Neuroscience of the Buzz and Mood Changes

When a drug is taken, dopamine is released in unusually high amounts.

This can lead to

  • Euphoria
  • Emotional Relief
  • Reduced Anxiety
  • Increased Confidence
  • Temporary Mood Elevation

For someone struggling with anxiety, trauma, or low mood, this can feel like a turning point. It may seem as though the substance numbs them from the world or allows them to feel calm, capable, or socially confident.

Some describe it as finally feeling like themselves. As though the drug gives them confidence and belief in themselves.

However, over time, the brain reduces its own dopamine production.

This often leads to

  • Low Mood
  • Irritability
  • Anxiety
  • Emotional Flatness
  • Loss Of Motivation

This is why many people find their mood worsens significantly without the substance.

How Drug Addiction Develops

With repeated use, the brain adapts in predictable ways.

1. Tolerance

More of the substance is needed to recreate the original buzz of it.

2. Emotional Instability

Mood becomes more dependent on the substance. Without it, low mood or anxiety can intensify.

3. Cravings

Stress, emotions, environments, or even certain thoughts can trigger urges.

4. Reduced Self-Control

The brain’s decision-making system becomes less effective, making it harder to stop.

Drug Addiction and Mood Disorders

Mood is one of the most significant and often overlooked aspects of addiction.

Substance use can both mask and worsen

  • Anxiety
  • Depression
  • Panic Symptoms
  • Emotional Dysregulation
  • Anger Or Irritability
  • Low Self-Worth

In many cases, drugs initially improve mood, but over time they disrupt the brain’s natural ability to regulate emotions.

This creates a cycle where the substance is used to manage the very symptoms it is intensifying.

Drug Addiction Rarely Sits Alone

In clinical practice, addiction often overlaps with multiple areas.

These may include

  • Anxiety And Panic, and Panic Attacks
  • Depression And Low Mood, Anger and Mood issues
  • Trauma And PTSD Or C-PTSD
  • ADHD And Neurodivergent Patterns
  • Sleep Disruption
  • Gut And Digestive Issues Such As IBS, Reflux, Bloating, Or SIBO
  • Hormonal Imbalance Including Thyroid Issues, PMS, Perimenopause Or Menopause
  • Chronic Stress And Burnout
  • Sugar Addiction And Food-Related Patterns
  • Relationship Difficulties Including Conflict, Separation, Or Betrayal

Addressing these areas together often leads to more sustainable progress.

The Gut-Brain Axis, Mood, and Cravings

The gut-brain axis is the communication system between your digestive system and your brain.

Your gut microbiome plays a role in

  • Mood Regulation
  • Stress Response
  • Cravings
  • Sleep Quality

Imbalances may contribute to

  • Increased Anxiety
  • Low Mood
  • Poor Stress Tolerance
  • Stronger Cravings

Blood sugar instability can also affect mood and increase impulsivity.

Supporting gut health and metabolic balance can help stabilise mood and reduce cravings.

Physical and Mental Health Effects

Drug addiction can affect multiple systems in the body.

Mental Health

  • Anxiety
  • Depression
  • Panic
  • Paranoia Or Psychosis
  • Poor Concentration
  • Emotional Instability

Physical Health

  • Cardiovascular Strain
  • Liver Stress
  • Digestive Problems
  • Hormonal Disruption
  • Immune Imbalance
  • Chronic Inflammation

It may also aggravate autoimmune conditions such as coeliac disease, rheumatoid arthritis, psoriasis, and thyroid disorders.

Addiction and Relationships

Addiction often impacts relationships significantly.

Partners and families may experience

  • Breakdown In Trust
  • Communication Difficulties
  • Emotional Distance
  • Financial Stress

Couples may find themselves repeating patterns of conflict or withdrawal.

Addressing addiction often includes rebuilding communication and emotional safety.

Why Private Addiction Therapy Can Help

Private, one-to-one work allows space to explore and resolve the deeper drivers of addiction in a confidential setting.

This may involve understanding

  • What The Substance Is Doing For You
  • What It Is Masking
  • What Needs To Change Underneath The Behaviour

Support may include

  • Counselling And Psychotherapy
  • Clinical Medical Hypnotherapy
  • Clinical Hypnotherapy
  • Rapid Transformational Therapy
  • Nutrition-Based Support
  • Gut And Metabolic Support

Irish Clinical Client

A man in his early forties from Cork sought help after cocaine use began affecting his mood, sleep, and relationship.

Initially, he relied on the buzz of it for confidence. He felt it gave him confidence and belief in himself and helped him manage anxiety.

Over time, however, his mood became unstable. Without the substance, he felt low, irritable, and anxious. His relationships and work were suffering.

Through counselling, clinical hypnotherapy, and nutritional support, the underlying issues, anxiety and stress patterns were addressed.

Gradually, his reliance on the substance reduced, and his mood stabilised and improved significantly and he felt free for the first time in his life.

What You Can Try This Fortnight

  1. Notice mood patterns
    When do you feel low, anxious, or triggered?
  2. Improve sleep
    Even small improvements can stabilise mood and reduce cravings.
  3. Eat regularly
    Stable blood sugar supports mood and reduces impulsivity.
  4. Reduce isolation
    Connection can help regulate emotional states.
  5. Seek professional support
    You do not have to manage this alone.

FAQs

Why do drugs affect mood so strongly?

They directly alter brain chemistry, particularly dopamine and stress-related pathways.

Can addiction cause depression or anxiety?

Yes. Long-term substance use can disrupt mood regulation and increase vulnerability to both.

Is it possible to feel confident without substances again?

Yes. With the right support, confidence and emotional stability can return naturally.

Does gut health influence mood and addiction?

Yes. The gut–brain axis plays a role in mood, cravings, and stress response.

Can addiction affect relationships long-term?

Yes. Trust, communication, and emotional connection can all be impacted.

Is recovery possible?

Yes. With the right support, many people achieve lasting change.

About the Author

Claire Russell
Registered Nutritionist, Clinical Medical Hypnotherapist, Clinical Hypnotherapist, Counsellor, Psychotherapist, Advanced Rapid Transformational Therapy Practitioner

Claire has over 20 years of clinical experience working across Ireland, the UK, Europe, UAE, Australia and USA. She works with adults, teenagers, and children experiencing addictions – drug addictions, alcohol addiction, food addiction, sugar addiction, sex addiction, porn addiction, vape and smoking, anxiety, panic attacks, depression, trauma, ADHD, sleep issues, gut and digestive disorders, fertility issues, hormonal concerns, chronic stress, burnout, autoimmune conditions, inflammatory issues, adhd, neurodivergent issues,  and relationship difficulties.

Her approach integrates counselling, psychotherapy, clinical hypnotherapy, Rapid Transformational Therapy, and evidence-based nutrition. This allows her to address both psychological and biological drivers of addiction, including mood instability, cravings, sleep disruption, gut imbalance, anxiety, panic, paranoia, and stress physiology.

Claire offers online addiction counselling and therapy across Ireland and internationally, and in-person sessions in Adare, Newcastle West, Limerick, Abbeyfeale, Charleville, Kanturk, Midleton, Youghal, Lismore Cork, Dungarvan and Dublin.

Book a Consultation Now

If you are struggling with drug addiction, mood changes, cravings, anxiety, or the impact on your health and relationships, support is available.

Appointments available for

  • Drug Addiction, Addictions And Substance Misuse
  • Anxiety, Panic, Paranoia, And Trauma
  • ADHD, ADD, Austism, Neurodivergent issues And Impulsivity
  • Sleep And Burnout
  • Gut issues And Digestive Health
  • Hormonal And Metabolic Health
  • Relationship Difficulties and Couples Counselling

Online and in-person consultations available across Ireland, UK, UAE, Australia, USA

Educational Disclaimer

This article is for educational purposes only and does not replace medical or psychological advice. Please consult your GP or qualified healthcare professional before making changes to treatment.

Academic References

  1. Volkow ND, Fowler JS, Wang GJ, Baler R, Telang F. Imaging dopamine’s role in drug abuse and addiction. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2851054/
  2. National Institute on Drug Abuse. The Science of Drug Use and Addiction: The Basics. https://nida.nih.gov/research-topics/addiction-science
  3. Koob GF, Volkow ND. Neurobiology of addiction: a neurocircuitry analysis. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6135257/
  4. U.S. Department of Health and Human Services. Facing Addiction in America: The Surgeon General’s Report on Alcohol, Drugs, and Health. https://www.ncbi.nlm.nih.gov/books/NBK424857/
  5. Everitt BJ, Robbins TW. Drug addiction: updating actions to habits to compulsions ten years on. https://www.annualreviews.org/doi/10.1146/annurev-psych-122414-033457
  6. Lüscher C, Malenka RC. Drug-evoked synaptic plasticity in addiction: from molecular changes to circuit remodeling. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6005194/
  7. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders (DSM-5). https://psychiatry.org/psychiatrists/practice/dsm
  8. World Health Organization. International Standards for the Treatment of Drug Use Disorders. https://www.who.int/publications/i/item/9789241549959
  9. Cryan JF, O’Riordan KJ, Cowan CSM et al. The microbiota-gut-brain axis. https://www.nature.com/articles/s41583-020-00411-y
  10. Sinha R. Chronic stress, drug use, and vulnerability to addiction. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356867/

Contact Claire Russell 087 6166638