Constipation is the rule at first, but diarrhoea may be present, and is a bad sign.
The symptoms of acute poisoning are pain and diarrhoea, owing to the setting up of an active gastro-enteritis, the foeces being black (due to the formation of a sulphide of lead), thirst, cramps in the legs and muscular twitchings, with torpor, collapse, convulsions and coma.
The fructification appears in March and April, terminating in short unbranched stems. It is said to produce diarrhoea in such cattle as eat it.
Internally hydrogen peroxide is used in various diseased conditions of the gastro-intestinal tract, such as dyspepsia, diarrhoea and enteric fever.
In old days free elimination by these channels was looked upon as a sign of returning health, and was termed a "critical" diuresis, diarrhoea or sweating, according to the channel through which the eliminative act had occurred.