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Understanding Uses of and Effects of Metoprolol Tartrate

Uses for Metoprolol Tartrate

Metoprolol tartrate has been licensed to treat a number of conditions. These uses include:
The medication does not cure high blood pressure or angina, however.
Metoprolol tartrate may also be recommended for other reasons, such as treating migraines or anxiety. It has not been licensed for use in children, but is often used off-label to treat specific conditions seen in children.
(Click What Is Metoprolol Tartrate Used For? for more information, including possible off-label uses.)

How Does the Drug Work?

Metoprolol tartrate is part of a class of drugs called beta-adrenergic blocking agents, or beta blockers for short. As the name implies, beta blockers work by blocking beta receptors in the body. Beta receptors are located in a number of places within the body, including the heart and blood vessels. These receptors are what stress hormones such as adrenaline attach to, and they cause certain reactions in the body, such as an increase in:
Metoprolol tartrate helps to block a specific type of beta receptor called beta-1 receptors. By blocking these receptors, the medication causes the reverse effect of these stress hormones. It decreases heart rate and both systolic and diastolic blood pressure, as well as the workload of the heart. This means that the heart requires less blood and oxygen to work properly.
Metoprolol tartrate is a beta-1 selective (or cardioselective) beta blocker. This means that it mostly blocks beta-1 receptors, especially at normal doses. However, it can block beta-2 receptors in the lungs to some extent, especially at higher dosages. This can lead to breathing problems, especially in people with asthma or other similar conditions.
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