Ankylosing spondylitis is ankylosing spondylitis, ankylosing spondylitis take Liuzasulfapyridine to take how long there is no clear provisions, according to personal differences, differences in condition and other factors can not give a specific time, in general, the patient’s condition is under control, to meet the criteria for discontinuation of the drug can be tried to gradually stop the drug. Ankylosing spondylitis discontinuation criteria for patients with low back symptoms disappeared, no more morning stiffness, no more peripheral joint pain, C-reactive protein, blood sedimentation and other laboratory indicators to return to the normal range, and the above situation can be stabilized for a period of time can be gradually stopped taking Liuzosulfapyridine, due to individual physical, medical and other differences in the patient’s need for treatment for how long can not be given a specific period of time. Adverse drug reactions such as drug rash, neutropenia or deficiency, hyperbilirubinemia, hemolytic anemia, etc. may occur after use of the drug. It is contraindicated in people who are allergic to sulfonamides, pregnant and lactating women, and children under 2 years of age. Note that patients with urinary tract or intestinal obstruction should be used with caution, drink plenty of water during the use of the drug, and regularly check the blood picture during the use of the drug. Liuzosulfapyridine need to be used under the guidance of a physician, it is recommended that patients with ankylosing spondylitis timely hospital consultation, follow the doctor’s instructions for medication.