The generic name of Betalucil is Metoprolol, and the effects of taking Metoprolol in people with normal blood pressure are related to the dosage of the drug. Metoprolol mainly through the inhibition of beta receptors play a role in lowering blood pressure and slowing down the heart rate, normal blood pressure people taking metoprolol can be used for tachycardia and coronary heart disease treatment. The effect of oral metoprolol in normal people is related to the dose of the drug. Small and medium doses of metoprolol have a relatively small effect on blood pressure, and if large doses of metoprolol are taken orally, it may lead to a drop in blood pressure and even the possibility of severe bradycardia. The main adverse reactions of metoprolol are dizziness, weakness, cold limbs, hypotension, bradycardia, etc. It is contraindicated in patients who are allergic to the drug components, second and third degree atrioventricular block, severe bradycardia, hypotension, and bronchial asthma. People with normal blood pressure should take oral metoprolol under the guidance of a physician, pay attention to the adverse effects of the drug, monitor blood pressure and heart rate.