Alcohol-Related Seizures and Epilepsy

Alcohol consumption can provoke seizures both in individuals with established epilepsy and in those without a prior history of the disorder. Acute intoxication depresses central nervous system function via enhancement of GABAergic inhibition and suppression of glutamatergic excitation; abrupt cessation of heavy use reverses these effects, leading to a hyperexcitable state that may precipitate withdrawal seizures. In people with epilepsy, acute heavy drinking, disrupted sleep architecture and impaired adherence to antiseizure medications further increase seizure likelihood. Genetic predisposition, particularly in those with generalised genetic epilepsy, amplifies vulnerability. Epidemiological and genetic studies indicate that even moderate habitual intake may modestly elevate long-term risk of developing epilepsy, while other lifestyle factors and comorbidities—such as depression or metabolic disturbances—interact with alcohol exposure to influence seizure threshold. Globally, alcohol-related seizures impose a substantial burden on health systems and affected individuals, emphasising the need for targeted preventive strategies, patient education on safe consumption levels and integration of alcohol-use assessment into routine epilepsy care. Advances in mechanistic understanding and risk stratification are guiding more personalised counselling and harm-reduction approaches, with implications for public health policy and clinical guidelines.

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Alcohol-Related Seizures and Epilepsy publication trend

The graph below shows the total number of articles in alcohol-related seizures and epilepsy across all publications each year (not limited to Nature Index journals).

Technical terms

Standard drink: A unit of alcohol defined by a set volume of pure ethanol (e.g. 10–14 g), used to quantify intake.

Alcohol withdrawal seizure: A convulsion occurring during the first 6–48 hours after abrupt reduction or cessation of heavy alcohol consumption.

Genetically predicted alcohol intake: An estimate of habitual alcohol consumption derived from genetic variants associated with drinking behaviour, used in causal inference studies.

Generalised genetic epilepsy: A group of epilepsy syndromes with presumed genetic aetiology, characterised by widespread synchronous seizure activity at onset.

References

1. Alcohol Use and Alcohol-Related Seizures in Patients With Epilepsy. Frontiers in Neurology (2018).
2. Research hotspots and frontiers of alcohol and epilepsy: A bibliometric analysis. Neuropsychopharmacology Reports (2024).
3. Alcohol, Coffee, and Milk Intake in Relation to Epilepsy Risk. Nutrients (2022).