Vanda consists of the dried stem of Dendrophthoe falcata (Linn. f.) Ettingsh. syn. Loranthus falcatus Linn. f. (Fam. Loranthacem), an epiphyte, mostly on fruit trees, and distributed throughout India.
Sanskrit : Bandaka, Samharsa, Vrksadani, Vrksaruha
Assamese : —
Bengali : Maandaa
English : Mistletoe
Gujrati : Baando
Hindi : Bandaa
Kannada : Bandhulu, Badanike
Kashmiri : —
Malayalam : Itil, Ittikkanni
Marathi : Baandagul, Banda
Oriya : Vrudhongo
Punjabi : —
Tamil : Pulluri
Telugu : Baadanikaa, Jiddu
Urdu : —
Small twigs of mrial branches ranging from 2 mm to 2.5 cm in thickness; the bark of stem thin, dark brown and specked with lighter brown, uniformly distributed lenticles; the wood reddish-brown after removal of thin bark; stem slightly rough to touch; fracture irregular; fractured surface dark brown; no distinct taste or odour.
A transverse section of stem reveals a circular outline with a thick cuticle, and epidermis made up of squarish or barrel shaped cells with convex outer periclinal walls and interrupted here and there by lenticular openings; cork made up of thin-walled, crushed rectangular cells; cortex consisting of many layers of tangentially elongated and rounded cells interspersed with sclereids upto 85 n in size and in groups of 2 to 4; many cells of cortex, especially those of outer few layers contain tannins ranging in colour from yellow, orange to dark brown; groups of pericyclic fibres form a ring outside phloem; cambium present; xylem surrounding the central pith and composed of well developed vessels, fibre and parenchyma, 1 to 4 seriate medullary rays composed of radially elongated cells present; pith consists of thin walled, rounded or polygonal parenchymatous cells; small groups of sclereids, up to 85 n each in size present in both pith and medullary rays; prismatic crystals present in association with sclereids and medullary ray cells.
Powder – Powder shows vessel elements with simple pitted thickenings, groups of sclereids containing prismatic crystals (size of crystal 30 to 35 n long and 15 to 17 n wide) and fragments of parenchyma cells containing tannins.
IDENTITY, PURITY AND STRENGTH
Foreign matter Not more than 1 per cent, Appendix 2.2.2.
Total Ash Not more than 5 per cent, Appendix 2.2.3.
Acid-insoluble ash Not more than 1 per cent, Appendix 2.2.4.
Alcohol-soluble extractive Not less than 3 per cent, Appendix 2.2.6.
Water-soluble extractive Not less than 3 per cent, Appendix 2.2.7.
T.L.C. of the alcohol soluble extract of the drug in chloroform as a mobile phase shows under UV (366 nm) spots Rf 0.13 (Grey); 0.24 (Green); 0.35 (Blue); 0.56 (Yellow); 0.76 (Grey); 0.85 (Orange Pink); 0.96 (Pink).
CONSTITUENTS – Young shoots contain nearly 10 per cent tannins and the stem contains β-amyrin-0-acetate, oleonolic acid its methyl ester acetate,β-sitosterol and stigmasterol.
PROPERTIES AND ACTION
Rasa : Madhura, Tikta, Kasaya
Guna : Laghu, Ruksa
Virya : Sita
Vipaka : Katu
Karma : Sramahara, Sukrajanana, Garbhasthapana, Grahi, Grahanasana, Kaphahara, Mutravirecaniya, Mangalakara, Netrya, Pittahara, Raksoghna, Rasayana, Vatahara, Vrsya, Vranaropana
IMPORTANT FORMULATIONS – (No formulations)
THERAPEUTIC USES – Bhagandara, Hikka, Mutraroga, Raktapitta, Vata-Smari, Vandhyatva, Visamajvara, Visaroga, Vrana
DOSE – 10 – 20 ml juice.