Metoprolol Tartrate Injection, USP

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Metoprolol tartrate USP is a selective beta1-adrenoreceptor blocking agent, available in 5 mL single use vials for intravenous administration. Each vial contains a sterile solution of metoprolol tartrate USP, 5 mg, sodium chloride USP, 45 mg and water for injection. Metoprolol tartrate USP is (±)-1-(isopropylamino)-3-[p-(2-methoxyethyl)phenoxy]-2-propanol (2:1) dextro-tartrate salt.