There is no clinical evidence to suggest that colonoscopy cannot be performed after taking Longxueguan Tablet, but Longxueguan Tablet has the efficacy of activating blood, so it is not recommended to do colonoscopy after using this medicine. Dragon Blood Extract Tablets is composed of Dragon Blood Extract, which has the efficacy of activating blood circulation, dispersing blood stasis, stabilizing pain and stopping bleeding, converging sores and regenerating muscles (helping sores to heal faster and promoting the growth of new flesh), and can be used clinically to treat qi and blood stagnation, bruises, traumatic bleeding, and pus sores that do not close for a long period of time. Pregnant women are forbidden to use this medicine. Enteroscopy refers to the insertion of an electronic scope into the patient’s intestinal tract via the anus. This drug has certain blood-activating effect. If enteroscopy is performed after using this drug, it will increase the risk of bleeding, therefore, it is not recommended to do this kind of examination after using the drug. To ensure safety, the drug should be discontinued for a period of time and then the examination should be performed again. Patients who need to use the drug, should be under the guidance of the doctor, unauthorized use of drugs may cause adverse consequences.