_--Congestion of cerebral vessels, dilated
pupils, red patches in alimentary canal.
_Treatment._--Wash out the stomach freely; a hypodermic injection of
apomorphine as an emetic, followed by hypodermic injections of
pilocarpine or morphine. Tea, coffee, or tannin, to precipitate the
alkaloid.
_Tests._--Atropine may be recognized by its action on the pupil. The
chloro-iodide of potassium and mercury precipitates it from very dilute
solutions.
=Hyoscyamus= (Henbane).--_Hyoscyamus niger._
=Stramonium= (Thorn-Apple).--_Datura stramonium._
_Symptoms._--Identical with those of belladonna and hyoscyamus, the
_post-mortem appearances_ and _treatment_ being also the same.
=Cannabis Indica= (Indian Hemp).--When smoked, produces intoxication and
mania. _Hashish_, used in the East as a narcotic, may cause persons to
run 'amok' and commit murder.
XXXI.--COCAINE
=Cocaine.=--Any dose above 1/2 grain applied to a mucous membrane or
injected hypodermically may give rise to alarming symptoms. These are
intense pallor, faintness, giddiness, dilatation of pupils, paroxysmal
dyspnoea, rapid, intermittent, and weak pulse, nausea and vomiting,
intense prostration verging on collapse, and convulsions.
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