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Medicines ethosuximideQuestion & answer

ethosuximide · Medicine question

How can ethosuximide affect phenytoin blood levels?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Ethosuximide may increase phenytoin blood levels, so periodic serum-level measurements may be necessary when these medicines are taken together.

Sources for this answer

Ethosuximide Aristo 250mg/5ml oral solutionAristo Pharma Limited · emc · SmPC §4.5 Interaction with other medicinal products · Version 3Document updated 8 April 2026

Sources checked 8 November 2026

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ethosuximide

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