SPL Set ID: d5bd3e97-b3f6-4bc2-9fb7-02921be35cdb

Methadone hydrochloride oral concentrate, USP contains methadone, an opioid agonist, and is available as a cherry-flavored liquid concentrate for oral administration. Methadone hydrochloride oral concentrate, USP sugar-free is a dye-free, sugar-free, unflavored liquid concentrate of methadone hydrochloride for oral administration. Methadone hydrochloride is chemically described as 6-(dimethylamino)-4,4-diphenyl-3-heptone hydrochloride. Methadone hydrochloride, USP is a fine white powder. It is very soluble in water, soluble in isopropanol and in chloroform, and practically insoluble in ether and in glycerine. It is present in methadone hydrochloride oral concentrate as the racemic mixture. Methadone hydrochloride has a melting point of 235°C, a pKa of 8.25 in water at 20°C, a solution (1 part per 100) pH between 4.5 and 6.5, a partition coefficient of 117 at pH 7.4 in octanol/water and a molecular weight of 345.91. Its structural formula is C 21 H 27 NO•HCl. Each liquid concentrate contains 10 mg of methadone hydrochloride (equivalent to 8.95 mg of methadone) per mL and the following inactive ingredients: artificial cherry flavor, sorbic acid, potassium sorbate, FD&C Red No. 40, D&C Red No. 33, poloxamer 188, propylene glycol, glycerin, sucrose, and purified water. Other ingredients of methadone hydrochloride oral concentrate, USP (dye-free, sugar-free, unflavored): citric acid anhydrous, purified water, sodium benzoate. Chemical Structure