ARTEMISIA ANNUA
Synonyms
: Qningho, Sweet-annie.
Biological
source : This consists of Chinese traditional
herb Artemisia annua Linn. Fam. Asteraceae
Geographical
source : It is endemic to china and grows wild
in Europe and America. It is cultivated in Vietnam, China, Turkey and
Australia. It is also cultivated on experimental basis in Gujrat, Jammu and
Kashmir, Uttar pardesh, Himachal pardesh and Karnataka.
Chemical
Nature: Out of seven of Artemisia, on;y. A
annua contains aterminisin, deoxyaremisinin 1.0% it is a sesquiterpene loctone
with an internal peroxide linkage. Artemisinic acid, arteanuuin A and B are the other constituents of drug.
Uses:
Artemisinin shows antimalarial effects by its rapied blood schizonticidal
activity. The trophozite development is arrested and pathological consequences
are not observed. It acts both against chloroquine sensitive and resistant P.
falciparum and P. vivax malarial parasites. Presently, artemisinin is the most
porent drug for trearing cerebral malaria. Artesunate and artemether, which are
the derivatives of artemisinin, have also been found to be highly effective.
Artemether has been developed by C.D.R.I., Luknow. Artemisic acid is reported
to have not only antibacterial but also cytotoxic and anti-inflammatory
actions.
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