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Additional
nicotine
English Wikipedia - The Free Encyclopedia
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Nicotine
Nicotine
is a
potent
parasympathomimetic
alkaloid
found in the
nightshade
family of plants (
Solanaceae
) and is a
stimulant
drug
. Nicotine is a
nicotinic acetylcholine receptor (nAChR) agonist
, except at
nAChRa9
and
nAChRa10
where it acts as an
antagonist
. It
is made
in the roots of and accumulates in the leaves of the nightshade family of plants. Nicotine is found in the leaves of
Nicotiana rustica
in amounts of 2–14%, the
tobacco
plant
Nicotiana tabacum
,
Duboisia hopwoodii
and
Asclepias syriaca
.
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