Celecoxib capsules belong to the anti-inflammatory and analgesic drugs, there is no strict time requirements for taking medication, gastrointestinal discomfort is recommended to take after meals. Celecoxib capsule belongs to non-steroidal anti-inflammatory drugs, clinically mainly used to relieve the signs and symptoms of various arthritis, such as rheumatoid arthritis, osteoarthritis and ankylosing spondylitis, etc., but also can be used for adults with acute pain analgesic treatment. There is no strict time requirement for taking the drug, and it can be taken before or after meals, which will not affect the effect of the drug. However, people with gastrointestinal discomfort are advised to take the drug after meals, which can reduce the incidence of gastrointestinal adverse reactions and alleviate gastrointestinal discomfort. Adverse effects of celecoxib include abdominal pain, diarrhea, dyspepsia, peripheral edema, headache, upper respiratory tract infection, etc. It is contraindicated in people who are allergic to non-steroidal anti-inflammatory drugs, people with active peptic ulcers, and patients with severe heart failure. Please consult a physician before using the drug, do not blindly use the drug on your own.