Nice to know:

Etymology
From Latin comitialis.
comitial (not comparable)
1. (in Ancient Rome) Of or pertaining to a comitia.
2. (by extension) Of or pertaining to a political assembly.
https://en.wiktionary.org/wiki/comitial

Nominativ comitialis / der Epileptiker
https://www.frag-caesar.de/lateinwoerterbuch/comitiale-ueber...

Chez l’adulte, l’épilepsie est classiquement définie comme « une maladie chronique caractérisée par la survenue d’au moins deux crises comitiales non provoquée, séparée par au moins 24h et en dehors de la période néonatale ».
Une crise comitiale correspond à « la survenue d’une interruption brusque du fonctionnement normal du cerveau par une décharge anormale car excessive et/ou hypersynchrone d’un groupe de neurones corticaux ». Cette synchronisation paroxystique de l’activité neuronale est l’élément physiopathologique central de l’épilepsie (Chabrol, et al., 2010) (Larousse 2012, 2012).
:
Certes il existe de potentiels effets secondaires au traitement mais le risque de dépression respiratoire est beaucoup plus faible que le bénéfice potentiel de prévenir un état de mal par l’administration précoce du traitement anti-comitial.
https://matheo.uliege.be/bitstream/2268.2/7423/1/Mémoire Van...

ABSTRACT
Gabapentin (GBP) is a new antiepileptic agenta with an original spectrum of activity. Its mechanism of action has not yet been fully elucidated but appears not to involve binding to GABA receptors despite being a structural analogue of GABA and is distinct from tricyclic antidepressants (TCAs). It has been shown to modulate high threshold calcium currents in brain neurons. As some other anticonvulsants, GBP has been recently proposed for the treatment of non-cancer neuropathic pain like diabetic neuropathy and post herpetic neuralgia (double blind studies with placebo).
https://www.amub-ulb.be/system/files/rmb/old/132

…, ce qui entraînait un traitement anticonvulsivant (antiepileptic) à long terme".

Sorry for not having posted the English term but the equivalent French term. In order to suggest the English term, I have to inverse the languages and to repost it. The references apply to both language directions and are therefore repeated. Since I had little time to look for more relevant references a few days ago, I hereby catch up and add them.

From the context, I understand that it is not so much a question of curing epilepsy, but of giving the epileptic seizure an anticonvulsive treatment.

Chez l’adulte, l’épilepsie est classiquement définie comme « une maladie chronique caractérisée par la survenue d’au moins deux crises comitiales non provoquée, séparée par au moins 24h et en dehors de la période néonatale ».
Une crise comitiale correspond à « la survenue d’une interruption brusque du fonctionnement normal du cerveau par une décharge anormale car excessive et/ou hypersynchrone d’un groupe de neurones corticaux ». Cette synchronisation paroxystique de l’activité neuronale est l’élément physiopathologique central de l’épilepsie (Chabrol, et al., 2010) (Larousse 2012, 2012).
:
Certes il existe de potentiels effets secondaires au traitement mais le risque de dépression respiratoire est beaucoup plus faible que le bénéfice potentiel de prévenir un état de mal par l’administration précoce du traitement anti-comitial.
https://matheo.uliege.be/bitstream/2268.2/7423/1/Mémoire Van...

ABSTRACT
Gabapentin (GBP) is a new antiepileptic agenta with an original spectrum of activity. …. As some other anticonvulsants, GBP has been recently proposed for the treatment of non-cancer neuropathic pain like diabetic neuropathy and post herpetic neuralgia (double blind studies with placebo).
https://www.amub-ulb.be/system/files/rmb/old/132

Definition von anticonvulsive
Adjektiv
preventing or alleviating convulsions
https://www.collinsdictionary.com/de/worterbuch/englisch/ant...

Anticonvulsive and Neuroprotective Effects of Eupafolin in Rats Are Associated with the Inhibition of Glutamate Overexcitation and Upregulation of the Wnt/β-Catenin Signaling Pathway
https://pubmed.ncbi.nlm.nih.gov/35500294/

Anticonvulsive properties of soticlestat, a novel cholesterol 24-hydroxylase inhibitor
https://pubmed.ncbi.nlm.nih.gov/35316533/

"anticonvulsive treatment" 10,600 results
"anti-comital" 50 results

The most common type (60%) of seizures are convulsive which involve involuntary muscle contractions.[25] Of these, one-third begin as generalized seizures from the start, affecting both hemispheres of the brain and impairing consciousness.[25] Two-thirds begin as focal seizures (which affect one hemisphere of the brain) which may progress to generalized seizures.[25] The remaining 40% of seizures are non-convulsive. An example of this type is the absence seizure, which presents as a decreased level of consciousness and usually lasts about 10 seconds.[2][26]
:
The mainstay treatment of epilepsy is anticonvulsant medications, possibly for the person's entire life.[11][25] The choice of anticonvulsant is based on seizure type, epilepsy syndrome, other medications used, other health problems, and the person's age and lifestyle.
https://en.wikipedia.org/wiki/Epilepsy#Signs_and_symptoms

2.1.5. Epilepsy
Epileptic patients usually take long-term anti-epileptic therapy; monotherapy antiepileptic drugs are often effective in seizure control and a significant number of these patients require polypharmacological anti-comital therapy [35].
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9600107/

… the reappearance of seizures after a seizure-free interval. In the cases of favorable outcome, an EEG follow-up is necessary: in 10% of these cases focal spikes appeared after 2 years without seizures. The necessity of prolonged anti-comital treatment is discussed.
https://pubmed.ncbi.nlm.nih.gov/7345495/

..., resulting in long-term anticonvulsive (anti-comital) treatment".