They are used dried and powdered as a cure for dysentery in cattle. The sap, termed a tear or lachryma, forms an excellent lotion for weak eyes and specks on the cornea. Ripe grapes in quantity influence the kidneys producing a free flow of urine and are apt to cause palpitation in excitable and full-blooded people. Dyspeptic subjects should avoid them. In cases of anaemia and a state of exhaustion the restorative power of grapes is striking, especially when taken in conjunction with a light nourishing diet.
Raisins are demulcent, nutritive and slightly laxative.
V. cordifolia , the Heart-leaved Vine or Chickengrape. V. riparia , the Riverside or Sweet-scented Vine.