SPL Set ID: b17a7b3a-e7a5-4987-ae85-ad970e7540c7
1 drug(s) with this SPL Set ID
Labetalol hydrochloride is an adrenergic receptor blocking agent that has both selective alpha1- and nonselective beta-adrenergic receptor blocking actions in a single substance. Labetalol hydrochloride is a racemate, chemically designated as 5-[1-hydroxy-2-[(1-methyl-3-phenylpropyl) amino] ethyl]salicylamide monohydrochloride, and has the following structure: Labetalol hydrochloride has the molecular formula C 19 H 24 N 2 O 3 •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 hydrochloride is a white or off-white crystalline powder, soluble in water. Labetalol hydrochloride injection USP is a clear, colorless to light yellow, aqueous, sterile, isotonic solution for intravenous injection. It has a pH range of 3.0 to 4.5. Each mL contains 5 mg labetalol hydrochloride USP, 45 mg anhydrous dextrose USP, 0.1 mg edetate disodium USP; 0.8 mg methylparaben NF and 0.1 mg propylparaben NF as preservatives; citric acid anhydrous USP and/or sodium hydroxide NF as necessary, to bring the solution into the pH range. structural-formula-labetalol