Found in grapes, pineapple, sorrel and other fruits. It is an antiscorbutic antiseptic, stimulating the mucous and salivary secretions.

Dullness and lassitude. Great weakness, with diarrhśa, with dry and brown tongue. Pain in heels (Phytol).

Stomach.--Excessive thirst, continued vomiting burning in throat and stomach. Dyspepsia with copious secretions of mucus.

Abdomen.--Pain around umbilicus and region of loins. Stool color of coffee-grounds (worse at night), with brown and dry tongue, and dark-green vomiting.

Dose.--Third trituration. The pure acid 10-30 grains dissolved in water.