ethosuximide · Medicine question

Does ethosuximide pass into breast milk?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Ethosuximide passes into breast milk; its effects on nursing infants are unknown, so breastfeeding is best avoided and use in nursing mothers requires caution and benefits that clearly outweigh risks.

Sources for this answer

Ethosuximide Aristo 250mg/5ml oral solutionAristo Pharma Limited · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 3Document updated 8 April 2026

Sources checked 8 November 2026

Explore this learning need in CPDTake this topic to CPD, then choose your learning context and available question library.

How can carbamazepine affect ethosuximide blood concentrations?How can ethosuximide affect phenytoin blood levels?How can valproic acid affect ethosuximide blood levels?How is ethosuximide thought to reduce seizure frequency?How much sucrose does Emeside (ethosuximide) 250 mg/5 ml syrup contain per 5 ml?Is ethosuximide contraindicated in people with porphyria?

loading page…

Answer

Sources for this answer

More questions about ethosuximide

Answer

Sources for this answer

More questions about ethosuximide

ethosuximide

More clinical questions?