Generic Metoprolol

There are currently two types of generic metoprolol available on the market -- Metoprolol Tartrate tablets and Metoprolol Succinate tablets. Metoprolol Tartrate tablets, the immediate-release version of metoprolol, come in 50 mg and 100 mg strengths. Generic metoprolol in the extended-release form is available only in a 25 mg strength.

 

Generic Metoprolol: An Overview

Metoprolol is a prescription medication that is used for lowering blood pressure (hypertension), relieving angina symptoms, treating congestive heart failure, and improving survival following a heart attack. Metoprolol may also be used for other reasons, such as treatment for migraines or anxiety.
 
Metoprolol is part of a class of medicines called beta-adrenergic blocking agents, or beta blockers for short. The drug helps to block a specific type of beta receptor called beta-1 receptors. By blocking beta-1 receptors, metoprolol causes the reverse effect of stress hormones, such as adrenaline (epinephrine). It decreases heart rate and both systolic and diastolic blood pressure, as well as the workload of the heart, meaning that the heart requires less blood and oxygen to work properly.
 
Metoprolol is sold under the brand names Lopressor® (immediate-release) and Toprol-XL® (extended-release). Lopressor was originally developed by Novartis Pharmaceuticals, and Toprol-XL was developed by AstraZeneca Pharmaceuticals. They have both since come off patent, making them available as a generic.
 

Generic Metoprolol: Strengths

The immediate-release version of metoprolol is sold under the name
 Metoprolol Tartrate tablets and is available in several strengths, including:
 
  • Metoprolol Tartrate 50 mg tablets
  • Metoprolol Tartrate 100 mg tablets.
     
The extended-release form of metoprolol is sold under the name Metoprolol Succinate tablets and is currently available in one strength -- Metoprolol Succinate 25 mg tablets. It is thought that within one year, other strengths of metoprolol succinate will also become available in generic form.
 
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;