Betalucil that is, metoprolol extended-release tablets, after taking the drug heart rate is too fast and the blood pressure is lowered to choose according to the situation, such as systolic blood pressure >=90mmHg can be treated by conservative treatment, systolic blood pressure <=90mmhg to use drugs such as dopamine. 1. When the systolic blood pressure >=90mmHg: after taking metoprolol drugs appeared to lower blood pressure, high heart rate to lie down immediately, so that can increase the blood flow to the brain, to avoid low blood pressure and lead to insufficient cerebral blood supply, every 5min measurement of blood pressure and heart rate, in the systolic blood pressure >=90mmHg need not be too much treatment, you can through the supplementation of saline to improve low blood pressure. 2. When the systolic blood pressure <=90mmHg: In this case, we should consult a doctor in time, timely injection of saline to replenish blood volume, so as not to cause hypotensive shock, and at the same time timely stop taking medication, you can use dopamine and other blood pressure-boosting drugs. Eat metoprolol extended-release tablets heart rate is too fast and blood pressure is reduced to seek medical attention in time, under the guidance of the doctor for related treatment.