Use 'epileptic' in medical or clinical discussions to refer to seizures related to epilepsy. The surgeon discussed the risks of operating on epileptic patients.
Pro Tip 2/3
Sensitivity Needed
'Epileptic' can sometimes be seen as a label, so it's more respectful to say 'person with epilepsy'. My brother is a person with epilepsy, not just an 'epileptic'.
Pro Tip 3/3
Adjective Nuance
'Epileptic' describes things related to epilepsy, not just the person. Be clear in context. The clinic specializes in epileptic care and treatment.