Arjuna tree
Arjuna tree bark (Latin Name: Terminalia arjuna Wight & Arn.) is a cardioprotective botanical used in Ayurveda (East Indian traditional medicine) since 2500 B.C. It has remarkable cardioprotective, heart muscle strengthening properties. Here are good reasons to take 250 mgs of Arjuna with meals once or twice daily.

1. Arjuna bark powder is rich in saponnins, natural anti-oxidants (flavonoids) gallic acid, ellagic acid, oligomeric proanthocyanidins, phytosterols, and minerals including calcium, magnesium, zinc and copper.

2. Regular use of T.arjuna improves the pumping activity of heart, which makes it very useful for heart weakness and congestive heart failure.

3. Arjuna improves cardiac muscle strength

4. It decrease in LDL cholesterol levels. Arjuna’s ability to suppress the blood’s absorption of lipids indicates that it has cholesterol-regulating properties. Its principle constituents are §-sitosterol, ellagic acid and arjunic acid.

5. Arjuna bark is rich in Co-enzyme Q-10 which prevents incident of heart attacks.

6. Arjuna also has a tonic and diuretic effects that benefit cirrhosis of the liver.

7. It induces a drug-dependent decrease in blood pressure and heart rate.

8. The bark of Arjuna is useful as an anti-ischemic and cardioprotective agent in hypertension and in ischemic heart disease, especially in disturbed cardiac rhythm, angina or myocardial infarction.

9. Arjuna helps maintain a healthy heart and reduces the effects of stress and nervousness.

10. Arjuna enhances prostaglandins and lowers risk of coronary heart trouble.

11. Arjuna can relieve symptomatic complaints of essential hypertension such as giddiness, insomnia, lassitude, headache and the inability to concentrate.

12. In a study on the efficacy of the bark powder in treating congestive cardiac failure (CCF), over 40% of the cases showed marked improvement. CCF due to congenital anomaly of heart and valve disease was also brought under control. 4 out of 9 cases of CCF due to chronic bronchitis were also relieved by the treatment.

Benefits of Terminalia arjuna herb or extract

Ancient Indian physicians used the powdered tree bark of Terminalia arjuna for treating angina and other cardiovascular conditions. 

Several substances in arjuna herb have very strong antioxidant benefits. Its stem bark possesses glycosides, large quantities of flavonoids, tannins and minerals. Flavonoids have been detected to exert antioxidant, anti-inflammatory and lipid lowering effects while glycosides are cardiotonic, thus making Terminalia arjuna unique among currently used medicinal plants. In rodent studies these antioxidants protect heart tissue from damage.

Breast cancer
A substance in Arjuna herb, casuarinin, inhibits breast cancer cell growth in laboratory studies.

Compounds in Arjuna herb help maintain healthy cholesterol levels.

Is there anything in the Arjuna supplement that could cause triglyceride levels to go up? I have been taking Arjuna for about 10 weeks for blood pressure, and it has worked well (I could not take the BP medications). However I did wonder about the triglycerides going up, as well as the cholesterol, and if you had any information about it.
Limited studies do not show a strong relation.

DNA protection
Arjuna has compounds that protect against DNA damage from toxins.

Effect of Terminalia arjuna extract on adriamycin-induced DNA damage.
Phytother Res. 2008.
Our results demonstrate that bark extract of Terminalia arjuna protects DNA against adriamicin-induced damage.

Heart disease
Experimental studies have revealed the bark of arjuna to exert inotropic and hypotensive effect, increasing coronary artery flow and protecting cardiac tissue against ischemic damage. Arjuna herb has also been detected to have mild diuretic, blood thinning, prostaglandin E(2) enhancing and blood lipid lowering activity. This herb has been studied in patients with angina. Arjuna dilates blood vessels, even in cigarette smokers.

Catecholamine-induced myocardial fibrosis and oxidative stress is attenuated by Terminalia arjuna
J Pharm Pharmacol. 2009; Kumar S, Enjamoori R, Seth S, Maulik SK. Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India.
Myocardial fibrosis and oxidative stress accompany a number of cardiac disorders such as hypertrophic cardiomyopathy, hypertensive heart disease and cardiac failure. Stem bark of Terminalia arjuna has been advocated for cardiac ailments. The present study evaluated the effects of T. arjuna bark extract on myocardial fibrosis and oxidative stress induced by chronic beta-adrenoceptor stimulation.T. arjuna protects against myocardial changes induced by chronic beta-adrenoceptor stimulation.

Effect of methanolic extract of Terminalia arjuna against Helicobacter pylori 26695 lipopolysaccharide-induced gastric ulcer in rats.
J Pharm Pharmacol. 2008. Department of Biochemistry, University of Madras, Guindy Campus, Chennai, Tamil Nadu, India.
Helicobacter pylori lipopolysaccharide (HP-LPS) is a potent virulence factor in the causation of gastric ulcer and gastritis. H. pylori-induced gastric pathology is prevalent throughout the world. The present study aimed to evaluate the anti-ulcer effect of a methanolic extract of Terminalia arjuna against HP-LPS-induced gastric damage in rats. Our results suggest that the severe cellular damage and pathological changes caused by HP-LPS are mitigated by arjuna herb; these effects are comparable with those of sucralfate. The anti-ulcer effect of terminalia arjun may reflect its ability to combat factors that damage the gastric mucosa, and to protect the mucosal defensive factors.

Botanical information

Terminalia arjuna is a tall, deciduous tree that can reach heights of 60 feet. The crown is large and spreading with drooping branches. The tree is widespread throughout India, and grows alongside rivers, streams, ravines, and dry waterways. The thick, soft bark is smooth and gray on the outside, with a reddish hue inside, and it flakes off in large, flat pieces. Thea leaves are oblong, and the small fruits, approximately an inch and a half long, are also oblong. The tiny, pale yellow flowers grow in spiky clusters.