Except for accounts used solely to pay postage due for shortpaid mail, address correction notices, and undeliverable-as-addressed pieces returned to sender (e.g., return service requested), mailers must pay a separate annual accounting fee for each extra service paid through an advance deposit account.
Immediate-release metoprolol tablets come in a number of strengths, including: 1  Lopressor or generic metoprolol tartrate 50 mg. 2  Lopressor or generic metoprolol tartrate 100 mg.
Metoprolol also is used in combination with other medications to treat heart failure. Metoprolol is in a class of medications called beta blockers. It works by relaxing blood vessels and slowing heart rate to improve blood flow and decrease blood pressure.