Under normal circumstances, it is recommended that Betalucil be taken orally after meals, because Betalucil is irritating to the gastrointestinal tract, the digestive system, especially the gastric mucosa, so it is recommended that patients take it orally after meals. Especially for patients with a history of digestive diseases, such as chronic reflux gastritis, gastric or duodenal ulcers, or even patients with upper gastrointestinal bleeding, it is important to take Betalucil orally after meals, so that the stimulation of the gastrointestinal tract will be relatively reduced. In addition, the sympathetic nervous system of the patient is more stable after meals, after taking Betalucel can play a significant role in the control of heart rate. Patients who take Betalucil for a long time will also have certain side effects, for example, after taking Betalucil for a long time and can not quickly reduce the drug, otherwise there will be adverse reactions to the drug.