SPL Set ID: 7a8635fe-6183-4cda-9029-50e4e6dd5832
1 drug(s) with this SPL Set ID
Methadone hydrochloride is chemically described as 6-(dimethyl amino)-4,4-diphenyl-3-hepatanone hydrochloride. Methadone hydrochloride is a white, crystalline material that is water-soluble. Its molecular formula is C 2 1 H 27 NO•HCl and it has a molecular weight of 345.91. Methadone hydrochloride has a melting point of 235°C, and a pKa of 8.25 in water at 20°C. Its octanol/water partition coefficient at pH 7.4 is 117. A solution (1:100) in water has a pH between 4.5 and 6.5. It has the following structural formula: Each methadone hydrochloride tablets contains 10 mg of methadone hydrochloride, USP and the following inactive ingredients: magnesium stearate, microcrystalline cellulose, and pregelatinized starch.