SPL Set ID: db52fdc0-765a-4fad-a8f9-ef98c6e4b898
1 drug(s) with this SPL Set ID
Methadone hydrochloride is chemically described as 6-(dimethylamino)-4,4-diphenyl-3-hepatanone hydrochloride. Methadone hydrochloride USP is a white powder. Its molecular formula is C 21 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: Methadone Hydrochloride Tablets USP are available for oral administration containing either 5 mg or 10 mg of methadone hydrochloride USP. Each tablet contains the following inactive ingredients: magnesium stearate, microcrystalline cellulose and pregelatinized starch. dolophine.jpg