Epsom salt; magnesium sulfate
Rare term for magnesium sulfate heptahydrate, used as a laxative or bath salt. The common modern term is 硫酸マグネシウム.
See also: 硫酸マグネシウム
In the past, Epsom salt was used as a laxative.
The standard modern chemical term for magnesium sulfate, far more common than 瀉利塩.
Rare kanji spelling for Epsom salt; the first character 瀉 is not a jōyō kanji.
Variant kanji spelling using 舎 instead of 瀉.
Variant kanji spelling using 痢 instead of 利.
From 瀉利 (shari, 'purging') + 塩 (en, 'salt'), referring to its use as a laxative. The exact historical derivation is uncertain.