Lopressor Ingredients and Composition
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Lopressor Ingredients and Composition
Metoprolol tartrate, the active ingredient in Lopressor, 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, the active ingredient of Lopressor, 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.
Lopressor Inactive Ingredients:
- 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
- titanium dioxide
Lopressor Information
