1 More songs from Fleetwood Mac. 2  More songs performed at The Grammys. 3  More songs with natural disasters in the title. 4  More songs about a mother or father. 5  More songs covered by the Glee cast. 6  More songs used in commercials. 7  More songs that were hits for more than one artist.
Lopressor, metoprolol tartrate USP, is a selective beta. 1-adrenoreceptor blocking agent, available as 50- and 100-mg tablets for oral. administration and in 5-mL ampuls for intravenous administration. Each ampul contains a sterile solution of metoprolol tartrate USP,
Metoprolol (Lopressor) is in a class of drugs called beta-blockers. Beta-blockers are used to treat chest pain (angina) and high blood pressure (hypertension). Beta-blockers are also used to treat or prevent heart attack.: Lopressor (metoprolol tartrate) belongs to a class of drugs called beta blockers. Metoprolol works by reducing the amount of work the heart has to do and the amount of blood the heart pumps out. Metoprolol can also slow down the heart when it beats too fast or there is an irregular rhythm.