Answer
Rarely, it can cause Stevens–Johnson syndrome or DRESS. A blistering, peeling or widespread rash with fever, mouth sores or swollen glands needs urgent medical assessment.
Sources for this answer
- Ethosuximide Neuraxpharm 500 mg/5 ml oral solution — Current selected SmPCemc · Summary of Product Characteristics
- Emeside 250 mg/5 ml Syrup / Ethosuximide Essential Generics 250 mg/5 ml Syrup — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.