The old vine of Erycibe obtusifolia Benth., family Convolvulaceae.
Vine long-terete, 1-4 cm in diameter. Cork grey-brown, coarse, with irregular
cracks and tuberculate lenticels; cork of the old vine often peeling off.
Prepared by obliquely cutting, heteromorphic vascular bundles irregulary
arranged with visible vessel openings; pith obvious or not. Acrid in taste,
warm in nature, slightly toxic, and attributive to liver and stomach channels.
1. Expel wind-dampness and alleviate pain: For arthralgia, lumbago and
pain of lower extremities, trauma, and abdominal pain.
2. Induce miosis: External use for primary glaucoma.
1. Scopoletin exerts an antiphlogistic effect in experimental animals.
2. The miotic effect of 0.01% erycibes A is similar to that of 2% pilocapine.