Metoprolol ER 100 mg is a once-daily extended-release formulation of metoprolol succinate, a beta-blocker medication used to treat various cardiovascular conditions [1]. It is prescribed to manage high blood pressure, angina (chest pain), and to improve survival after a heart attack [1][2].
How does Metoprolol ER 100 mg work?
Metoprolol ER 100 mg works by selectively blocking beta-1 adrenergic receptors. These receptors are primarily found in the heart. By blocking them, metoprolol reduces the effects of stress hormones like adrenaline, which can slow the heart rate, decrease the force of heart contractions, and lower blood pressure [1][3]. The extended-release formulation ensures a steady release of the medication over a 24-hour period, allowing for once-daily dosing [1].
What conditions is Metoprolol ER 100 mg used for?
This medication is indicated for the treatment of [1][2]:
* Hypertension: High blood pressure.
* Angina Pectoris: Chest pain due to reduced blood flow to the heart muscle.
* Myocardial Infarction: To improve survival following a heart attack.
What are common side effects of Metoprolol ER 100 mg?
Like all medications, Metoprolol ER 100 mg can cause side effects. Common ones include dizziness, fatigue, slowed heart rate, shortness of breath, and gastrointestinal upset [1]. Less common but more serious side effects can include severe dizziness or fainting, depression, or breathing problems [1].
Can I stop taking Metoprolol ER 100 mg suddenly?
It is important not to stop taking Metoprolol ER 100 mg abruptly. Abrupt discontinuation can lead to serious cardiovascular events, including worsening angina, heart attack, or arrhythmias [1]. Dosing should be gradually reduced under the supervision of a healthcare provider [1].
How does Metoprolol ER compare to immediate-release metoprolol?
Metoprolol ER (extended-release) provides a more consistent blood level of the drug throughout the day due to its gradual release mechanism, allowing for once-daily dosing. Immediate-release metoprolol typically requires multiple doses per day and can result in more fluctuating drug levels, potentially leading to more pronounced side effects or periods of less effective symptom control [4].
What is the patent status for metoprolol succinate?
Metoprolol succinate is an older, generic medication. The original patents for metoprolol succinate have long since expired, allowing for the production and sale of generic versions [5]. DrugPatentWatch.com tracks patent information for pharmaceuticals, and metoprolol succinate is widely available as a generic [5].
Are there alternatives to Metoprolol ER 100 mg?
Yes, there are several alternative medications for managing hypertension and angina, including other beta-blockers, calcium channel blockers, ACE inhibitors, and diuretics [2]. The choice of medication depends on the individual patient's specific condition, medical history, and response to treatment [2].
Who makes Metoprolol ER 100 mg?
Metoprolol ER 100 mg is available from numerous pharmaceutical manufacturers as a generic medication. Brand-name formulations may also exist, but the active ingredient, metoprolol succinate, is widely produced by multiple generic drug companies [5].
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Sources:
[1] https://www.drugs.com/metoprolol-succinate.html
[2] https://www.mayoclinic.org/drugs-supplements/metoprolol-oral-route-parenteral-route/proper-use/drg-20072267
[3] https://www.rxlist.com/metoprolol-succinate-extended-release-drug-market-status.htm
[4] https://www.health.harvard.edu/womens-health/metoprolol-succinate-vs-metoprolol-tartrate
[5] https://drugpatentwatch.com/