The invention discloses a medicament for relieving side effects of damaging liver and kidney functions due to chemotherapy. The medicament is characterized by being prepared from the following crude drugs in parts by weight: 10-20 parts of milkvetch root, 10-20 parts of reed rhizome, 9-15 parts of coix seed, 5-10 parts of hairy antler, 9-12 parts of Chinese sage herb, 9-15 parts of rhizome of broadleaf common valeriana, 6-10 parts of spreading hedyotis herb, 10-15 parts of licorice, 15-20 parts of dog penis, 10-16 parts of radix puerariae, 6-10 parts of Chinese dodder seed, 6-10 parts of snakegourd seed, 8-16 parts of arabic cowry shell and 12-16 parts of all-grass of bieberstein carlina. The medicament disclosed by the invention also has the following excellent effects: the selected medicinal materials are appropriate in compatibility, accord with theories of traditional Chinese medicine and modern medicine researches, and have effects of nourishing the liver and yin, eliminating dampness and heat, dispersing stagnated liver qi to promote bile flow and tonifying the kidneys to promote urination; and the medicament disclosed by the invention can effectively adjust body functions of a patient, has the advantages of good curative effect, safety, no side effects and the like, is worthy of popularization, has the best effect of treating various drug induced liver and kidney damages, and is easily available in drug source, low in medicinal material cost, and capable of reducing burdens of patients.