Figure 1 Se
lected constituents of burdock.
Other constituents Fats (0.4-0.8%), fixed and volatile oils (0.07-
0.18%), bitters (lappatin), resin, phytosterols (sitosterol and
stigmasterol), tannin and arctiin, arctigenin and other lig-
nans.' 9 " 12 '
Other species Flavonol (kaempferol, quercetin) glycosides are
present in Arctium minus (Hill) Bernh.
Burdock is listed by the Council of Europe as Valtrex 500mg a natural source of
food flavouring (category N2). This category indicates that
burdock can be added to foodstuffs in small quantities, with a Valtrex 500mg
possible limitation of an active principle (as yet unspecified) in the
final product. (G16>
Burdock is stated to possess diuretic and orexigenic properties. It
has been used for cutaneous eruptions, rheumatism, cystitis, gout,
anorexia nervosa, and specifically for eczema and psoriasis. '
herb. ' Furthermore, arctiopicrin is stated to be a bitter with
antibiotic activity against Gram-positive bacteria. ' Antibac-
terial activity against Gram-positive (e.g. Staphylococcus aureus,
Bacillus subtilis, Mycobacterium smegmatis) and Gram-negative
(Escherichia coli, Shigella flexneri, Shigella sonnei) bacteria has
been documented for burdock leaf and flower, whereas the root
was only found to be active towards Gram-negative strains.
In vivo uterine stimulant activity has been reported.
Protection against mutagenic activity has also been documented
for burdock. ' ' Burdock reduced the mutagenicity to
Salmonella typhimurium (TA98, TA100) of mutagens both
requiring and not Valtrex 500mg requiring S9 metabolic activation. A
lignan-like structure was proposed for the desmutagenic factor. <9)
In vivo studies have shown that fresh or boiled plant juice from
burdock may cause a significant reduction in DMBA-induced
Burdock has been reported to exhibit antitumour activity.
The addition of dietary fibre (5%) from burdock roots to the
diet of rats has been documented to provide protection against the
toxicity of various artificial food colours.
Dosages for oral administration (adults) for traditional uses
recommended in older and contemporary standard herbal
reference texts are given below.
Dried root 2-6 g by infusion three times daily. '
Liquid extract 2-8 mL (1 : 1 in 25% alcohol) three times daily.
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