Rhododendron campanulatum

Family ► Ericaceae.

Habitat ► The Himalayas from Kumaon to Bhutan, extending to Assam.

English ► Giantblood Rhododendron.

Action ► Respiratory depressant, emetic, toxic.

The leaves and flowers gave an-dromedotoxin which resembles tertiary amine veratrum alkaloids, particularly protoveratrine, in pharmacological action. Intravenous administration of andromedotoxin to dogs

Family ► Ericaceae.

Habitat ► Throughout the Himalayas at altitudes of 2,400-5,200 m.

Folk ► Chimal (Kumaon, Nepal), Gagger vurmi, Nichnai (Kashmir). Cherailu, Taalis-far.

Action ► Leaves—used in chronic rheumatism and sciatica. As a snuff, in colds and hemicrania.

The leaves gave a toxic substance which resembles andromedotoxin; besides ericolin, ursolic acid, alpha-amy-rin, friedelin, epi-friedelinol, campan-ulin, quercitin. The pigments of flowers contain myricetin and quercetin.

548 Rhododendron cinnabarinum Hook. f.

Petroleum ether and chloroform extracts of leaves, stems and flowers lower blood pressure in cats and inhibit intestinal movements in rabbits.

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