Isosorbide nitrate tablets full name isosorbide mononitrate extended-release tablets, cows on the clearing tablets and isosorbide mononitrate extended-release tablets did not specify that can not be eaten together, if there are both indications, you can follow the doctor’s instructions to take medication. Niu Huang Shang Qing Tablet belongs to a kind of Chinese patent medicine, in the clinical efficacy to clear heat and fire (clear the body of heat and fire), dispersal of wind and pain relief, targeting mainly wind and heat attack on the head and eyes caused by headache and dizziness, red eyes, tinnitus, sore throat, mouth and tongue sores, swollen and painful gums, stool dryness and other symptoms. Pregnant women should be cautious; should not take warm tonic proprietary Chinese medicines at the same time during the period of taking the drug. Isosorbide Mononitrate Extended-Release Tablets belong to western medicine, which is widely used in the prevention and treatment of coronary heart disease and angina pectoris in clinical practice. Headache may occur at the beginning of the treatment, and the symptoms disappear after continuous use of the drug, with occasional hypotension, drowsiness, nausea and other symptoms. Contraindicated in patients with glaucoma, shock, marked hypotension, hypertrophic obstructive heart disease, acute myocardial infarction, severe cerebral arteriosclerosis. Use with caution in pregnant and lactating women. Use with caution in acute myocardial infarction with low ventricular filling pressure, postural circulatory dysregulation. Not to be used in acute attacks of angina pectoris. If the above diseases occur at the same time, you need to take Niu Huang Shang Qing Tablets and Isosorbide Mononitrate Extended-Release Tablets, the specific use of the drug is recommended to consult a doctor.