Sulfasalazine is not specifically required to be taken at what time, but it should be taken at a relatively regular time each day, and the best results are achieved by taking Sulfasalazine after meals. Sulfasalazine is an immunosuppressive drug that is often used in the treatment of inflammatory bowel diseases such as ulcerative colitis and Crohn’s disease, as well as rheumatic diseases such as rheumatoid arthritis and ankylosing spondylitis. The dosage of Liuzosulfapyridine varies according to the condition and body weight, and there is no special regulation on the time of taking the drug, but it is generally required to take the drug at a fixed time of the day, and taking the drug after a meal can reduce the gastrointestinal adverse reactions, and the interval between nighttime doses should not be more than 8 hours. It is important to note that it is best to start with a small dose and gradually increase to a therapeutic dose. Gastrointestinal reactions such as nausea and abdominal pain, as well as dizziness, hematuria, and yellowing of the skin may occur during the administration of the drug, and the occurrence of these adverse reactions requires prompt medical attention. Allergic to sulfonamides, pregnant women, lactating women, children under 2 years old are prohibited. Precautions: patients who are allergic to furosemide, hydrochlorothiazide, other sulfonamides may also be allergic to this product. During the use of this drug need to be regularly is to review the blood routine, liver and kidney function, urine routine. Sulfasalazine must be used under the supervision of a doctor.