Does aspirin damage liver and kidney function?
Aspirin is commonly available in tablet, capsule, and powder formulations. It is a medication used for fever reduction and pain relief, classified as a nonsteroidal anti-inflammatory drug (NSAID) and an antiplatelet agent. Whether aspirin causes damage to liver or kidney function depends on the dosage used. When taken properly as directed by a physician, it generally does not harm liver or kidney function. However, self-medicating without medical guidance may lead to liver or kidney damage. It is recommended to seek timely medical advice and undergo treatment under a doctor's guidance. Detailed explanations are as follows:

When aspirin is used according to a doctor's instructions regarding dosage and duration, particularly when used short-term and at low doses for cardiovascular disease prevention or to relieve mild pain, it typically does not cause significant liver or kidney damage. In such cases, the body can effectively metabolize and excrete aspirin and its metabolites, preventing excessive strain on the liver and kidneys.
However, if aspirin is used indiscriminately, it may trigger an allergic reaction with liver cells, thereby affecting liver function and leading to manifestations of liver injury such as elevated transaminase levels and cholestasis. Additionally, long-term use of high-dose aspirin may impact the circulation and blood supply to the kidneys, potentially causing kidney dysfunction.
Patients undergoing aspirin therapy should take the medication under medical supervision, strictly adhering to the prescribed dosage and duration. During aspirin treatment, regular monitoring of liver and kidney function indicators is necessary.