Define metoprolol. metoprolol synonyms, metoprolol pronunciation, metoprolol translation, English dictionary definition of metoprolol. n. A beta-blocker drug, C15H25NO3, used in its tartrate and succinate forms to treat hypertension and angina pectoris. Noun 1. metoprolol - beta blocker. metoprolol A beta-blocker used for hypertension and angina. Adverse effects Headache, fatigue, dizziness, dry cough, angiooedema. Contraindications This website uses cookies, including third party ones, to allow for last update 2019/03/28 analysis of how people use our website in metoprolol medical definition order to improve your experience and our services. Metoprolol definition is - a beta-blocker C15H25NO3 used in the form of its succinate and tartrate especially to treat hypertension and angina pectoris. a beta-blocker C15H25NO3 used in the form of its succinate and tartrate especially to treat hypertension and angina pectoris… Medical uses. Metoprolol is used for a number of conditions, including hypertension, angina, acute myocardial infarction, supraventricular tachycardia, ventricular tachycardia, congestive heart failure, and prevention of migraine headaches. Metoprolol is a beta-blocker that affects the heart and circulation (blood flow through arteries and veins). Metoprolol is used to treat angina (chest pain) and hypertension (high blood pressure). Ce médicament appartient à la famille des bêtabloquants. Ceux-ci agissent en bloquant l'action de l'adrénaline (et d'autres hormones apparentées) sur de nombreux organes, notamment sur le cœur, les vaisseaux et plus faiblement sur les bronches. A beta-blocker drug, C15H25NO3, used in its tartrate and succinate forms to treat hypertension and angina pectoris. Metoprolol definition, a beta blocker, C15H25NO3, used in the treatment of hypertension, angina, and cardiac arrhythmias. See more. metoprolol A beta-blocker used for hypertension and angina. Adverse effects Headache, fatigue, dizziness, dry cough, angiooedema. Contraindications.