In fact, Camphor is a anti-histaminergic and anti-cholinergic, thus the cardiac stimulant.
Its not because you cant search right that it doesn't exist, cheer up bro :P
I sort of take offense to that. You can't just call me out on research skills like that bro.
I did a goole scholar search and that paper didn't come up. But I am still not convinced. I checked that paper and it was citing another study about Camphor supposedly being anticholinergic and an anithistamine.
So I searched for that paper, and in the abstract it says that a plant called Lippia dulcis or Aztec Sweet Herb was found to be anticholinergic and an anithistamine. Here is the abstract:
activity of essential oil from Lippia dulcis Trev.
Görnemann T, Nayal R, Pertz HH, Melzig
AIM OF THIS STUDY:
To investigate the essential oil of Lippia dulcis Trev.
(Verbenaceae) that is traditionally used in the treatment of cough,
colds, bronchitis, asthma, and colic in Middle America for
MATERIALS AND METHODS:
We used a porcine bronchial bioassay to study contractile
responses to carbachol and histamine in the absence or presence of
the essential oil.
The essential oil showed anti-histaminergic and anti-cholinergic
activities at 100 microg/ml.
The anti-histaminergic and anti-cholinergic activities of the
essential oil of Lippia dulcis support the rational use of the plant
or plant extracts to treat bronchospasm.
But the abstract says nothing about camphor and I can't access the full text version right now. So I am not convinced that they have linked Camphor to these effects.
And another thing supporting the possibility that Camphor does not have these effects is that there are likely to be two chemotypes for this herb: a Camphor chemotype and a Hernandulcin chemotype.
Here is a paper that found that specimens of this plant from Puerto Rico only have trace amounts of Camphor:
Plants collected in Mexico showed the opposite, having high levels of Camphor and only traces of Hernandulcin. So if the plants in the study Görnemann study were collected outside of Mexico, they might not have any Camphor. And even if they do, it could still be other compounds that are responsible for the anticholinergic and anithistamine effects.
If someone could access and post the Görnemann paper we could clear this up. Or if there is another more conclusive paper showing that Camphor has these effects, then maybe you could post that, Qwer. I'm just not convinced since I looked at like ten papers and sites about the pharmacology of Camphor yesterday, and none of then mentioned anything about anticholinergic or antihistamine effects.