Job’s tears, which means Coix lacryma, are not harmful to the kidneys, and should be used in accordance with the doctor’s instructions.
Job’s tears are made from the dried mature seed kernels of the plant Coix lacryma, family Gramineae, with medicinal properties including water retention and spleen strengthening, muscle relaxation and paralysis, and detoxification and dispersal of knots.
It is mainly used in the treatment of dysuria (unsmooth urination), dampness and warmth (warmth caused by feeling dampness and heat), edema, athlete’s foot, diarrhea, dysentery, rheumatism and paralysis, contracture of sinews and veins (continuous tension and stiffness of the muscles), carbuncle (carbuncle occurring in the bowels and organs of the intestines and manifesting itself in fever, pain in the right side of the abdomen, and palpable masses), carbuncle of the lungs, and warts (sarcomas on the skin), and other conditions.
There is no clear contraindication to the use of Coix lacryma, but it should be used with caution in patients with spleen deficiency without dampness, dry stools and pregnant women. Specific adverse reactions are not clear, and it is generally believed that reasonable use of the drug is not harmful to the kidneys. The specific use of drugs should be carried out under the guidance of specialists, not unauthorized use of drugs.