Pronunciation: sil′ē-ŭm sēd
Definition: The cleaned, dried ripe seed of Plantago indica, P. isphagula, or of P. ovata. A mild cathartic that acts by absorbing water and providing indigestible mucilaginous bulk for the intestines. Must not be used in intestinal obstruction.
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Examples: glitazone, GI cocktail, etc.