|Gotu Kola Uses:
This Asian species is reputed to bring long life to the user.
According to the Sinhalese proverb: "Two leaves a day will keep old age
away." As the story goes, people in Sri Lanka noticed that elephants,
animals known for their longevity, included Centella leaves in their diet.
Extrapolation suggested that this creeping herb of Southeast Asian swamps might
be good for almost anything that could ail a human, as well.
Lanka it is eaten as a salad, and in Vietnam it is considered an edible weed.
It has been part of Ayurvedic medicine for a long time. C. asiatica also
grows in Madagascar, parts of southern Africa, and some parts of China. In
Chinese medicine, it is known as luo de da or ji xue cao and is used to lower
fever, promote urination, and "detoxify" the body.
The leaves and other
aboveground parts of the plant are used. C. asiatica contains
several saponins, including brahmoside and brahminoside, and a number of
alkaloids. Madecassoside and asiaticoside appear to contribute to the
plant's medicinal activity. It also contains flavonols, amino acids, fatty
acids, sterols, saccharides, and some mineral salts.
Gotu kola is traditionally
used for high blood pressure and to treat nervous disorders. Chinese
research suggests that it slows heart rate as well as lowers blood pressure. It
also has some antibacterial activity. Gotu kola extract (as titrated
extract of C. asiatica, or TECA) has been studied for its effect on varicose
veins as well as on poor venous circulation in the legs. The
results suggest that the extract can stimulate the synthesis of collagen in the
walls of the veins and help them hold their tone and function better.
Other traditional uses of C. asiatica include skin problems,
rheumatism, jaundice, and fever. Tests of TECA in animals showed that topical
application helped experimental wounds heal faster. Asiaticoside may be
responsible. TECA has also been observed in clinical settings, where it
appears to speed healing of surgical incisions and skin ulcers. In one trial it
was administered to patients with parasitic infections that damage the bladder.
Three-fourths of these patients recovered well, with little or no bladder
Beyond the proverbial two
fresh leaves a day, dosage information is limited. The usual dose is 0.5
to 1 g three times a day. The tea is made by pouring 1 cup of boiling
water over teaspoon of dried leaves and steeping for ten minutes.
Standardized extract: 60 to 120 mg per day. Fluid extract (1:1): 2 to 4
ml daily. C. asiatica should not be used for more than six weeks
Precautions: Pregnant women should avoid using this
plant. This herb is not appropriate for people with
epilepsy. Because of the possibility of photosensitivity,
fair-skinned people and those who have reacted badly to sunlight while taking
other medications should avoid sunshine, tanning lamps, and other sources of
ultraviolet light while taking gotu kola.
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