Bacopa

Bacopa

Common name: Brahmi, water hyssop

Botanical name: Bacopa monniera

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© Martin Wall

Parts used and where grown

Bacopa is native to India, where it grows in marshy areas. In the West, bacopa is a familiar water plant used in aquariums. Most parts of the plant have been used traditionally, but modern preparations are extracts of the stem and leaves.

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Bacopa has been used in connection with the following conditions (refer to the individual health concern for complete information):

Science Ratings Health Concerns
2Stars

Age-related cognitive decline

1Star

Alzheimer's disease

Anxiety

Epilepsy

3Stars Reliable and relatively consistent scientific data showing a substantial health benefit.
2Stars Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
1Star For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit.
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Historical or traditional use (may or may not be supported by scientific studies)

Since at least the sixth century A.D., bacopa (Brahmi) has been used in Ayurvedic medicine (the traditional medicine of India) as a diuretic and as a tonic for the nervous system and the heart. Specific uses include the treatment of asthma, insanity, and epilepsy.1

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Active constituents

The leaves of bacopa contain saponins, including the bacosides,2 3 4   which are thought responsible for the therapeutic properties of the herb. In animal studies, both purified bacosides and extracts of bacopa standardized for bacosides have been found to enhance several aspects of mental function and learning ability.5 6 7 Additional brain effects of bacopa demonstrated in animal research include reduction of both anxiety and depression.8 9 Biochemically, these nervous-system effects have been attributed to an enhancement of the effects of the neurotransmitters acetylcholine and,10 11 possibly, serotonin or GABA (gamma aminobutyric acid).12 13

Bacopa extracts also appear to have significant antioxidant activity in the brain,14 and other effects that may help protect brain cells.15

Animal research has also reported that bacopa extracts can relax the muscles that control the blood vessels, the intestine, and the airways of the respiratory system,16 17 18 19   and can help both prevent and heal ulcers in the stomach.20

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Traditional herbal references recommend 5 to 10 grams per day of the powdered herb.21 Human research has used 300 to 450 mg per day of an extract standardized to contain 55% bacosides.

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Bacopa appears to be well tolerated when taken in typical amounts,22 although one double-blind study reported significantly more symptoms of dry mouth, nausea, and muscle fatigue in participants taking bacopa.23

Are there any drug interactions?
Certain medicines may interact with bacopa. Refer to drug interactions for a list of those medicines.

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References
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