Metoprolol Tartrate is one of a group of medicines is known as beta-adrenergic blocking agents, beta-blocking agents, or, more commonly, beta-blockers. Beta-blockers are used in the treatment of high blood pressure, and some are also used to relieve angina and in heart attack patients to help prevent additional heart attacks. They are also used to correct irregular heartbeat, prevent migraine headaches, and treat tremors.
Be sure to tell your doctor of any allergies you have whether it is to medication or food, preservatives, or dyes. Tell your doctor immediately if you are, or become pregnant, or are breastfeeding. Also, tell your doctor of any other medications you are taking, including vitamins and supplements, and any medical conditions you may have.
It is very important that you take this medicine exactly as your doctor tells you to. If you miss a dose of this medicine, take it as soon as you remember, unless it is almost time for your next dose. Do NOT double doses.
Tell your doctor as soon as possible if any of the following side effects occur: breathing difficulty and/or wheezing; cold hands and feet; mental depression; shortness of breath; slow heartbeat; swelling of ankles, feet, and/or lower legs; back pain or joint pain; chest pain; confusion; dizziness or lightheadedness when getting up from a lying or sitting position; fever and sore throat; hallucinations; irregular heartbeat; red, scaling, or crusted skin; skin rash; or unusual bleeding and bruising.
Metoprolol tartrate, is a selective beta1-adrenoreceptor blocking agent, available as 50- and 100-mg tablets for oral administration and in 5-ml ampuls for intravenous administration. Each ampul contains a sterile solution of metoprolol tartrate, 5 mg and sodium chloride, 45 mg. Metoprolol tartrate is (±)-1-(isopropylamino)-3-(p-(2-(methoxyethyl) phenoxy)-2-propanol (2:1) dextro-tartrate salt. Metoprolol tartrate is a white, practically odorless, crystalline powder with a molecular weight of 684.82. It is very soluble in water; freely soluble in methylene chloride, in chloroform, and in alcohol; slightly soluble in acetone; and insoluble in ether. Tablets contain cellulose compounds, colloidal silicon dioxide, D&C red no. 30 aluminum lake (50-mg tablets), FD&C blue no. 2 aluminum lake (100-mg tablets), lactose, magnesium stearate, polyethylene glycol, propylene glycol, povidone, sodium starch glycolate, talc, and titanium dioxide.
Metoprolol has the following structural formula: