The precautions for taking Imatinib: First, it should be taken regularly and quantitatively; second, it should not be interrupted or reduced at will. In the clinic, we often encounter some patients who feel that they have a big reaction to the medication, and they should have taken four pills a day, but they reduced the dosage to three pills, this is not possible, we must eat regularly and quantitatively. In addition, you should eat in the middle of each meal, and drink a lot of soup and water after eating. Secondly, the medicine should not be broken apart and eaten, but swallowed in one gulp, and not crushed, or break it into half a pill, which will also affect the effect. After taking the medicine, you have to go to the hospital regularly and periodically to follow up and observe the effect of taking the medicine to see if you need to increase the amount, if the effect is not good, the disease progresses to increase the amount, increase the amount to eat for a period of time or not, the disease process continues to progress, you also have to change the medicine. Many patients do not strictly follow the doctor’s instructions for medication, resulting in disease progression, can not be treated, so patients must take medication according to medical advice.