Dalbergia lanceolaria Linn (Goraksa)

This tree is not described in the nighantus of Ayurvedic literature i.e; neither in Brihat Trayi nor in nighantus.

Note– Its another species D. volubilis Roxb is also used as Gorakhi

Botanical Description – It is a tree growing upto 26m bearing white flowers. It is found mainly in the western ghats in India.

Major Chemical Constituents– Root bark- Contain lanceolarin a glycoside.

Part Used– Whole plant, seed oil

Dosage– Decoction 40-50 ml

Research–

(1) The crude extract of leaves significantly reduced the swelling of the hind paw of albino rats induced by formaldehyde (Chaturvedi & Singh, 1964).

(2) The ethereal, alcoholic and water extract of leaves showed some degree of anti-arthritic effect against formaldehyde-induced chronic arthritis in albino rats (Singh & Chaturvedi, 1966).

(3) Lanceolarin is found to be more effective in reducing acute inflammation than chronic. Prilimiary clinical studies were conducted on 6 potients of RA (20mg i.m./day for 10 days (Tripathi & Kishore, 1967).