Nurturing Minds,
Enabling Empowerment
Our trusted mental health professionals deliver diagnosis and personalised treatment strategies for ADHD

Consultation
Psychiatric evaluations are provided to adult patients aged 16 and above for diagnosis, clarification of diagnoses, and obtaining second opinions on diagnosis, treatment, and management. Our offerings encompass reviewing psychopharmacological treatments and providing recommendations for patients resistant to treatment.

Telepsychiatry
If you’re unable to come and see our clinicians in Mascot, we have comprehensive Telepsychiatry consultations which allow you to receive treatment via video conference as suggested by the Royal Australian and New Zealand College of Psychiatrists - RANZCP, this method of treatment can save time, space, energy and cost.

Treatment Resistance
You may be one of the patients who do not respond to treatments that are effective for 70-80% of the cases. This may be due to problems at the brain receptors (where the drug is supposed to act) or the drug metabolism. When people, for genetic reasons, have too much (rapid metaboliser) or too little (poor metaboliser) liver enzymes that metabolise that specific drug (e.g., antidepressant), we can have a problem – lack of efficacy or unexpected side effects for that dosage, respectively.
About Us
Dr. Dorgival Caetano
M.D., PhD, FRANZCP
- Medical Director and Senior Psychiatrist
The Sydney International ADHD Centre was created under the leadership of Prof. Dr. Dorgival Caetano, an expert in treatment of ADHD in adults.
He was trained in Psychiatry at the Federal University of Rio de Janeiro, holds a PhD from Cambridge University (U.K.) and, before coming to Australia, was a Professor of Clinical Psychiatry at one of the two top Universities in Brazil. He is a published author and co-author in 88 papers, 16 book chapters and 6 books covering different aspects of Mental Health, Clinical Psychiatry and Psychopharmacology.
Prof. Caetano also provides diagnosis and treatment for most areas of adult Clinical Psychiatry, including Bipolar Disorders, Psychotic Disorders, Depressive Disorders, Anxiety, Phobic, Panic and OCD, and Treatment-resistant mental disorders.

Watch Our Latest Consultant Video
Understanding Symptoms of ADHD
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental condition affecting millions globally. It is characterized by symptoms encompassing inattention, hyperactivity, and impulsivity, significantly impacting daily functioning.
Challenges in maintaining attention or focusing on tasks
Restlessness or excessive fidgeting
Impulsive behaviors or decision-making

Forgetfulness or disorganized thoughts
Poor time management or tendency to procrastinate
Difficulty in task completion or following through on commitments

Dr. Dorgival Caetano
Medical Director and Senior Psychiatrist
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Dr. Phillip O’Rourke
Consultant Psychiatrist
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Dr. Yasoja Chamilka Jayasinghe
Consultant Paediatrician
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Dr. Dorgival Caetano
Medical Director and Senior Psychiatrist
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Dr. Phillip O’Rourke
Consultant Psychiatrist
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Dr. Stephen Hook
Consultant Psychiatrist
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Dr. Yasoja Chamilka Jayasinghe
Consultant Paediatrician
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