Bisoprolol for premature beats can be effective in about 3~4 hours after taking it, but need to take it persistently for a long time to maintain the therapeutic effect. Clinically, Bisoprolol belongs to the β-receptor antagonist, after taking it can inhibit myocardial contractility and slow down the heart rate, so as to play a role in lowering blood pressure, mainly used in hypertension, coronary heart disease and other diseases treatment. The peak blood concentration is reached within 3~4 hours after taking, and then the drug effect can be realized. Its half-life is 10~12 hours, and its effect can be maintained for about 24 hours. The drug needs to be taken regularly for a long period of time to stabilize the blood concentration in a balanced state, so as to achieve the desired therapeutic effect. Usually the drug may cause dizziness, nausea, vomiting and other discomforts after taking it. It is contraindicated for people with acute heart failure and cardiogenic shock. It should be used with caution for people with high blood pressure or angina pectoris with heart failure, and it is also necessary to monitor blood pressure to avoid causing hypotension. Pregnant and lactating women need to use the drug under medical supervision. If you need to take Bisoprolol due to your condition, it is recommended that you consult a doctor in time to decide on the dosage of the drug after a comprehensive assessment of your condition and follow the doctor’s instructions to standardize the use of this product.