Below are the main rubriks (i.e strongest indications or symptoms) of Bryonia in traditional homeopathic usage, not approved by the FDA.
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RECTUM, ANUS, STOOL
Alternation of diarrhoea and constipation.
Obstinate conspiration; stools very dry, large and hard; only after much straining.
Hard, black and dry stool, as if burnt, and rather scanty.≡ more ...