Epilepsy or not please reply…eeg results attached - #11731
She(18F) took eucalyptus oil 5ml and had 2 GTCS on one day(2/1/25), and she was prescribed phenytoin 100mg thrice daily and leviteracetam 500mg twice daily and EEG was taken on 5/1/25 which showed BACKGROUND : Awake record shows 8-9Hz alpha activity of 60 ot 100uV, which is wel modulated and most prominent over bilateral occipital regions, with normal reactivity to eyes opening. SLEEP : Normal physiological sleep related activity was seen. TRANSIENTS : There were frequent burst of sharp and slow wave discharges seen over both the hemispheres lasting for a period of 0.5-1 second. PROCEDURES: There was normal response to hyperventilation and photic stimulation. OTHER OBSERVATIONS: NIL. CLINICAL CORRELATION: INTER-ICTAL RECORD S/O GENERALIZED EPILEPSY Is the EEG due toeucalyptus oil or epilepsy? Please reply
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Doctors’ responses
Hello dear See eeg or electro encephalography is a diagnostic test for brain functioning and related disorders. It is usually associated with detection of epilepsy, trauma or injury to the cerebral cortex Ingestion of eucalyptus oil can cause toxicity but if swallowed in very hight amount As per these tests conducted, generalised epilepsy is there. May be you could be prescribed below medication Carbamazepine Sodium valproate Gabapentin I suggest you to please consult neurologist in person for better clarification Please take medication only after recommendation from concerned physician Hopefully you recover soon Regards
Hello Beulah,
🛑It is likely generalized epilepsy , not just because eucalyptus oil.
The presence of interictal epileptiform discharges suggests a pre-existing tendency toward seizures, which the eucalyptus oil triggered, but did not cause.
I hope this answers your concern Feel free to talk Thank you
It’s improbable that the eucalyptus oil directly caused the changes observed in the EEG. While eucalyptus oil ingestion can lead to symptoms such as seizures, particularly in large doses, it doesn’t typically cause persistent EEG abnormalities seen in epilepsy. In this case, the EEG findings suggest generalized epilepsy, characterized by bursts of sharp and slow wave discharges, alongside normal responses to hyperventilation and photic stimulation. Those features are consistent with an epileptic pattern rather than an acute toxic reaction. For a more definitive diagnosis, it’s important to consider recurring seizures, the EEG results, and any other relevant clinical data. The prescription of phenytoin and levetiracetam is meant to prevent further seizure activity indicative of epilepsy. To piece this all together, a thorough assessment by a neurologist would be advisable to explore any underlying epilepsy and review treatment efficacy. Maintaining a seizure diary could help in identifying potential seizure triggers or patterns. It’s important to discuss any lifestyle concerns or medication adjustments directly with her healthcare provider, considering her current situation, to ensure her management plan aligns with her daily life and safety. Keep an eye on possible side effects from the medications and report them promptly.
Hello Beulah, thank you for sharing your concern. I went through your history and EEG report and here is my advise for you -
1. Eucalyptus oil is known to cause seizures in some people.
2. The EEG findings are typical of tendency for generalized epilepsy. But such findings do not appear in normal people after eucalyptus ingestion after the toxin clears out.
3. So the eucalyptus oil probably triggered the first seizure. But the EEG suggests she has an underlying predisposition to epilepsy (otherwise the EEG would have been normal). So, even without eucalyptus oil in future, she may still be at risk of seizures.
4. Phenytoin and Levetiracetam are standard anti-seizure medicines. They help control seizures and prevent recurrence. Duration of treatment depends on clinical course and your neurologist’s advice (often at least 2 years seizure-free before considering taper).
5. Lastly, Prognosis is generally good if medicines are taken regularly. Please avoid all possible seizure triggers (sleep deprivation, alcohol, missed medicines, certain oils/camphor, flashing lights in sensitive individuals).
Feel free to reach out again.
Regards, Dr. Nirav Jain MBBS, DNB D.Fam.Med
The eucalyptus oil likely triggered her first seizures, but the EEG findings are not explained by eucalyptus toxicity alone. They are consistent with underlying generalized epilepsy.
1. The EEG report shows frequent bursts of sharp and slow wave discharges on both hemispheres, which is a typical finding seen in generalized epilepsy.
2. Eucalyptus oil in high doses can act as a toxin and trigger convulsions in some people, but its effects are usually short-lived and do not produce lasting EEG changes.
3. The abnormal activity in your EEG taken days after the episode suggests that there is an underlying seizure tendency, not just a temporary effect of eucalyptus oil.
4. The medicines prescribed, phenytoin and levetiracetam, are standard anti-seizure drugs and are appropriate for controlling generalized epilepsy.
5. Having two GTCS seizures on the same day and then an abnormal EEG pattern supports the diagnosis of epilepsy rather than a one-time toxic reaction.
6. With regular use of the medicines, seizure control is possible and most people can lead a normal life when they stick to treatment.
7. To confirm further, your neurologist may repeat EEG in follow-up, and continued monitoring will help decide how long you need medication.
Hello Beulah,
Thank you for sharing the details.
1. About the event
Ingesting 5 ml eucalyptus oil is known to cause neurotoxicity and can trigger seizures, even in people without prior epilepsy.
So, the two GTCS (generalized tonic-clonic seizures) on that day could very well be directly due to eucalyptus oil ingestion.
2. About the EEG (done 3 days later)
The report mentions frequent generalized sharp and slow wave discharges → this is an inter-ictal epileptiform abnormality, typically seen in generalized epilepsy syndromes.
This pattern is not explained solely by eucalyptus oil — if seizures were only toxin-induced, the EEG is usually normal after recovery.
3. Interpretation
The presence of such EEG abnormalities suggests a tendency for epilepsy, even if the first seizures were provoked by eucalyptus oil.
In practice, doctors treat this as epilepsy and continue anti-seizure medicines (like phenytoin, levetiracetam), especially since she had multiple seizures.
4. Next steps Continue medications as prescribed. Follow up with a neurologist for regular review and possible long-term management. Avoid seizure triggers (sleep deprivation, missed meds, toxins, alcohol, etc.).
Hello I suggest you to visit a NEUROLOGIST for best opinion and management. EPILEPSY is a serious issue and you may need to switch medicines and tale precautions. So, have an in person session with the specialist ONLY.
Take care
Ingestion of eucalyptus oil is known to cause side effects like respiratory depression,seizures,gastrointestinal symptoms. Though there is no antidote for eucalyptus oil , the treatment is usually supportive with use of antiepileptic drugs(usually phenytoin is not used in toxin induced seizures).The only thing Your doctor can do is to optimise the antiepileptics to find a minimum dose at which you remain seizure free
Thank you for sharing the details. From what you have described, the seizures occurred after ingestion of eucalyptus oil, which is known to be neurotoxic and can provoke generalized tonic–clonic seizures even in individuals without a prior history of epilepsy. However, the EEG done a few days later shows inter-ictal generalized epileptiform discharges, which is more in keeping with an underlying predisposition to epilepsy rather than just an acute toxin-related event. Toxin-induced seizures usually resolve once the offending agent is cleared, and the EEG tends to normalize; persistent epileptiform discharges suggest that the patient may indeed have generalized epilepsy. In clinical practice, such cases are treated as new-onset epilepsy, and antiseizure medications (like phenytoin and levetiracetam) are continued for some time under close follow-up. It is important for her to have ongoing neurological evaluation, as the diagnosis cannot be made on EEG alone — history, recurrence of seizures, and follow-up EEGs will help clarify whether this was purely toxin-induced or the unmasking of an underlying epilepsy. So oil likely triggered the initial seizures, but the EEG findings suggest that she has an underlying tendency for generalized epilepsy, which needs continued neurologist supervision.
In this case, the seizures were likely triggered by eucalyptus oil ingestion (a known neurotoxin that can provoke seizures), but the EEG showing generalized epileptiform discharges suggests an underlying tendency toward epilepsy rather than just a one-time toxic reaction. A single toxic exposure usually causes seizures with a normal EEG once recovered, whereas persistent inter-ictal epileptiform activity points to an inherent seizure disorder.
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