If uric acid reaches 900 μmol/L after taking anti-tuberculosis drugs, you can lower it by the following methods: 1. drink more water and try to drink soda. 2. take carbonic acid tablets plus febuxostat tablets. 3. stop pyrazinamide and switch to levofloxacin. Try all three methods, and then do blood uric acid test to monitor the efficacy, or a combination of these methods. This is because the increase in uric acid after taking anti-tuberculosis drugs is due to the side effects of pyrazinamide. Pyrazinamide can reduce the amount of uric acid excreted in the blood when it is applied, so it can raise the blood uric acid and trigger gout. Most of the anti-tuberculosis drugs have some side effects. The common side effect is gastrointestinal irritation, which is usually not serious and can be treated without special treatment. Another common side effect is liver damage, so liver function should be checked regularly during treatment, and liver-protective treatment should be given if necessary. If there is serious liver damage, anti-tuberculosis drugs should also be stopped.