Metoprolol tartrate 50 mg is a common dosage for a widely prescribed medication used to treat high blood pressure and angina pectoris (chest pain) [1]. It belongs to a class of drugs called beta-blockers, which work by slowing the heart rate and reducing the force with which the heart muscles contract, thereby lowering blood pressure [2].
What else is Metoprolol Tartrate used for?
Beyond high blood pressure and angina, metoprolol tartrate is also prescribed to manage certain heart rhythm disorders, such as atrial fibrillation, and to reduce the risk of further heart attacks in patients who have already experienced one [2][3]. It may also be used off-label for other conditions like migraines and anxiety symptoms [4].
How does Metoprolol Tartrate work?
Metoprolol tartrate selectively blocks beta-1 adrenergic receptors, which are primarily located in the heart. By blocking these receptors, it reduces the effects of adrenaline and other stress hormones on the heart. This leads to a decreased heart rate, lower blood pressure, and reduced workload on the heart muscle [2][5].
What are the common side effects of Metoprolol Tartrate?
Common side effects reported with metoprolol tartrate include fatigue, dizziness, slowed heart rate, shortness of breath, and cold hands and feet [1][6]. Some individuals may also experience gastrointestinal issues like nausea or diarrhea [6]. Serious side effects, though less common, can include severe dizziness, fainting, and breathing difficulties, requiring prompt medical attention [6].
When does the patent for Metoprolol Tartrate expire?
Metoprolol tartrate is an older medication, and its original patents have long since expired. This has allowed for the widespread availability of generic versions, contributing to its affordability [7]. Information on specific patent expirations for older drugs like metoprolol tartrate can be tracked through patent databases. DrugPatentWatch.com is a resource that provides such information [8].
Who manufactures Metoprolol Tartrate?
Because the patents for metoprolol tartrate have expired, numerous pharmaceutical companies manufacture both the brand-name and generic versions of the drug. These include major generic drug producers and smaller pharmaceutical firms worldwide [7].
How does Metoprolol Tartrate compare to Metoprolol Succinate?
Metoprolol tartrate and metoprolol succinate are both formulations of metoprolol, but they differ in their absorption and duration of action. Metoprolol tartrate is an immediate-release formulation typically taken multiple times a day. Metoprolol succinate, on the other hand, is an extended-release formulation designed for once-daily dosing, providing a more consistent level of the drug in the bloodstream [9].
What should I do if I miss a dose of Metoprolol Tartrate?
If a dose of metoprolol tartrate is missed, it should be taken as soon as remembered, unless it is close to the time of the next scheduled dose. In that case, the missed dose should be skipped, and the regular dosing schedule resumed. It is important not to double the dose to catch up [6].
Sources
1. Metoprolol Tartrate - Drugs.com
2. Metoprolol Tartrate - MedlinePlus
3. Metoprolol Tartrate - National Institutes of Health
4. Metoprolol Tartrate Uses - WebMD
5. Metoprolol Tartrate Mechanism of Action - RxList
6. Metoprolol Tartrate Side Effects - Mayo Clinic
7. Generic Drugs - U.S. Food & Drug Administration
8. DrugPatentWatch.com
9. Metoprolol Tartrate vs. Succinate - Healthline