what is metoprolol trat
(Redirected from Metoprolol tartrate). Metoprolol, marketed under the tradename Lopressor among others, is a selective Î²1 receptor blocker medication. It is used to treat high blood pressure, chest pain due to poor blood flow to the heart, and a number of conditions involving an abnormally fast heart rate.It is also used to prevent further heart problems after myocardial infarction and to prevent headaches in those with migraines.etoprolol 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.