What functional action do tannins in Salal leaves impart, opposite of a laxative agent?

Answer

Astringent action

The leaves of the salal plant are abundant in tannins, which are the source of their pronounced astringent taste and corresponding medicinal action. Astringency refers to the property of toning and constricting body tissues. In the context of digestion, this action helps manage issues characterized by excessive looseness or inflammation, such as diarrhea or irritation of the mucous membranes within the gastrointestinal tract. This tightening or firming effect is the direct functional opposite of a laxative, which seeks to speed up transit time and loosen stools.

What functional action do tannins in Salal leaves impart, opposite of a laxative agent?
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