Patients with a history of allergy to vitamin C Patients with dyspnea caused by cardiogenic pulmonary edema Pregnant women Lactating women Patients with a previous history of end-stage pulmonary disease, end-stage malignant tumor, diabetic ketoacidosis, severe kidney Active kidney stone disease

Patients with a history of allergy to vitamin C Patients with dyspnea caused by cardiogenic pulmonary edema Pregnant women Lactating women Patients with a previous history of end-stage pulmonary disease, end-stage malignant tumor, diabetic ketoacidosis, severe kidney Active kidney stone disease