After renal failure, the detoxification ability of kidneys will be reduced, and toxins represented by creatinine and urea will accumulate in the body, causing damage to various organs, which will also lead to loss of appetite, nausea and vomiting, and require the help of drugs to help detoxification. Intravenous medications, mainly renal injection, can promote the elimination of toxins, thus relieving patients’ loss of appetite and other digestive symptoms. There are also oral medications that can also promote the elimination of toxins, such as medicinal charcoal tablets, urinary toxicity clear granules, and Haikun Kidney Hi capsules. Patients can take these drugs orally while applying Kidney Health injection, which is sometimes more effective than using one drug alone. However, it should be emphasized that the application of drugs to help detoxification is only for the early and middle stages of renal failure, if it has reached the advanced stage, that is, the uremic phase, only hemodialysis can be given to treat it.