Hypertension sudden nausea and vomiting, need to first clarify the causes of nausea and vomiting, and then for the cause of treatment, need to take antihypertensive drugs, if gastrointestinal diseases, but also need to use gastrointestinal diseases related drugs. 1. High blood pressure: patients with sudden nausea and vomiting, if it is caused by elevated blood pressure, you need to take nitroglycerin, and then oral antihypertensive drugs for treatment, such as captopril, nifedipine and so on. After the blood pressure is effectively controlled, the special symptoms caused by the enhancement will be relieved accordingly. 2. Acute gastroenteritis: effectively controlled hypertension generally does not cause nausea and vomiting, if accompanied by abdominal pain or diarrhea, it may be caused by acute gastroenteritis, and blood pressure is not related to the time, can not take antihypertensive drugs, so as not to lead to low blood pressure. It is necessary to take relevant drugs under the guidance of a doctor to treat acute gastroenteritis, such as montelukast, loperamide, norfloxacin and so on. However, it is not recommended that patients take drugs privately, as it is easy to take drugs privately with improper control of the dosage or drugs that are not appropriate for the patient.