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Trandate Online, Description, Chemistry, Ingredients - Labetalol

DESCRIPTION

TRANDATE Tablets are adrenergic receptor blocking agents that have both selective alpha₁-adrenergic and nonselective beta-adrenergic receptor blocking actions in a single substance.

Labetalol hydrochloride (HCl) is a racemate chemically designated as 2-hydroxy-5-[1-hydroxy-2-[(1-methyl-3-phenylpropyl)amino]ethyl]benzamide monohydrochloride.

Labetalol HCl has the empirical formula C₁₉H₂₄N₂O₃·HCl and a molecular weight of 364.9. It has two asymmetric centers and therefore, exists as a molecular complex of two diastereoisomeric pairs. Dilevalol, the R,R' stereoisomer, makes up 25% of racemic labetalol.

Labetalol HCl is a white or off-white crystalline powder, soluble in water.

TRANDATE Tablets contain 100, 200, or 300 mg of labetalol HCl and are taken orally. The tablets also contain the inactive ingredients corn starch, FD&C Yellow No. 6 (100- and 300- mg tablets only), hydroxypropyl methylcellulose, lactose, magnesium stearate, methylparaben, pregelatinized corn starch, propylparaben, sodium benzoate (200-mg tablet only), talc (100-mg tablet only) and titanium dioxide.

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