Capecitabine tablets are usually better taken after meals. 1. Capecitabine is a cytotoxic agent with selective activity against tumor cells, which can be converted into cytotoxic 5-fluorouracil in the body, thus helping to kill cancer cells and improve the rate of tumor control. It is usually recommended that patients take it after meals, mainly to reduce the stimulation of the gastrointestinal tract, slow down the speed of gastric emptying of the drug and thus help the absorption of the drug. 2. Adverse effects of capecitabine tablets include reversible gastrointestinal reactions such as diarrhea, nausea, hand-foot syndrome, stomatitis, poor appetite, fatigue and so on. It is contraindicated in children, pregnant women and lactating women, and should be used with caution in patients with hepatic or renal insufficiency. 3. In addition, capecitabine should be avoided in combination with sorivudine or its analogs. If the patient develops grade 2 or 3 hand-foot syndrome, the application should be suspended. It is recommended that patients use the drug under the guidance of a doctor, and should not blindly self-medicate to avoid the adverse effects of the drug.