Neurology is the sub-specialty of medicine that deals with disorders of the nervous system. All categories of diseases involving the central (brain, brainstem, cerebellum and spinal cord) and peripheral nervous system as well as the linings of these structures and their blood supply may be managed by a neurologist.




Dr. O’Sullivan on RTÉ’s ‘The Today Show’ to promote World Parkinson’s Day

Patient Resources

Dr O’Sullivan is not responsible for the content of the following web resources. UK-based websites also included for information.


Migraine Association of Ireland 
British Association for the Study of Headache
The Organisation for the Understanding of Cluster Headache (UK)
Trigeminal neuralgia 

Movement Disorders

Parkinson’s Association Ireland 
Parkinson’s Disease Society UK
Progressive Supranuclear Palsy Association of Ireland
Multiple Systems Atrophy
National Tremor Foundation UK
Dystonia Ireland
Tourettes Action (UK)
Huntington’s Disease Association of Ireland
Ataxia UK 


Dementia Services Ireland
Alzheimer’s Society (UK)
Frontotemporal and rare dementias (UK)

Functional Neurological Disorders

Multiple Sclerosis

Multiple Sclerosis Society of Ireland
Multiple Sclerosis Society (UK)

Epilepsy & Blackouts

Epilepsy Ireland 
National Society for Epilepsy (UK) 
Syncope Trust and Reflex Anoxic Seizures (UK)
Road safety authority Medical Fitness to Drive document

Neuromuscular Disorders

Muscular Dystrophy Ireland
Myasthenia Gravis UK
Irish Motor Neurone Disease (MND) Association
Guillain Barre and associated inflammatory neuropahthies
Peripheral Neuropathy



Stroke Association (UK) 
Irish Heart Foundation 

Head Injury

Headway Brain Injury Information
Acquired Brain Injury

Other Neurological Disorders

Narcolepsy Association UK  
Neurological Alliance of Ireland