Taking Calcium Hydroxybenzenesulfonate Capsules will not harm the kidney. Calcium hydroxybenzenesulfonate capsule can improve capillaries and blood circulation, which can be used to treat diseases such as renal function injury and will not play a role in kidney injury. Generally after renal function injury, treatment with this drug can play a role in protecting the kidneys. Clinical drugs that can damage renal function are relatively few, if renal dysfunction occurs, the reason may be that the drug is basically metabolized from the kidneys, you can adjust the dosage of some drugs appropriately. If the kidney function is not good, you can go to the regular hospital to check the specific reasons, for treatment. Calcium hydroxybenzenesulfonate generally has no effect on people with normal renal function, and regular monitoring of relevant indicators is required. Adverse reactions include nausea, heartburn, loss of appetite, stomach upset, urticaria, fever, sweating and other symptoms, so the drug should be used in accordance with medical advice. The product should be contraindicated in people who are allergic to the components of this drug, try not to use it in early pregnancy and lactation to avoid adverse reactions.