Labetalol Hydrochloride Tablet starts with an oral dose of 100mg after meals, and can be maintained at about 200-400mg after 2-3 days, the specific dosage needs to be decided by the doctor after assessing the condition. Labetalol hydrochloride tablets belong to the beta receptor antagonist, after taking can inhibit myocardial contractility and slow down the heart rate, so as to play a role in lowering blood pressure, mainly used in the treatment of various types of hypertension. In the initial stage of taking the drug, you need to follow the doctor’s instructions to choose a small dose of drug treatment, in the treatment of 2~3 days, according to the condition of the gradual increase in the dose of the drug, and then the dose of the drug can be maintained at about 200~400mg. The drug may cause gastrointestinal discomfort, fatigue, asthma aggravation and other discomforts. Therefore, it is contraindicated for people with bronchial asthma, hypersensitivity to the components of the drug, acute heart failure, cardiogenic shock. During the administration of the drug it is necessary to monitor blood pressure to avoid hypotension. The drug should be used with caution by those who operate machinery and drive vehicles, and under the supervision of a doctor for pregnant and breastfeeding women. Usually the drug should be used under the guidance of a doctor, not blindly self-medication, so as not to cause adverse consequences.