Characteristics and Constituents :
Salai Gugaal gum contains arabinose, galactose, xylose, diastatic enzymes galacturonic acid, digitoxose, rhamnose, the volatile oil obtained from gum oleo-resin contains œ-pinene, œ-phellandrene, sesquiterpene alcohols, anisaidehyde phenols. Aqueous fraction gave poly-saccharides A and B. Three triperpene acids, œ, ß and ÿ-boswellic acids have been reported. The anti inflammatory and anti arthritic properties are attributed to the presence of ß-boswellic acid and related triterpene acids.

Actions and Uses :
When tested on Ehrlich ascites carcinoma and S-180 tumours transplanted in mice, it increased the life span of mice by 24% with ascites and decreased S-180 tumour by 24%. The essential oil of Boswellia Serrata was found to he anti-fungal. Anti-inflammatory activity and anti-bacterial activity of extracts have been demonstrated. The non-phenolic fraction of gum resin exhibited sedative and analgesic effects when tested in rats. The chemistry and pharma- cology of the gum has been reviewed.
It is used in rheumatic disorders. It is also used to improve appetite and in general weakness. It has an anti-diarrhoeal action.
With the recommended doses side effects are uncommon. Occasionally patients may complain of heartburn or warmth of hands and feet.