SPL Set ID: d702d32b-98b1-412d-934c-1cd96af4b95a
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 fine 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 are available for oral administration containing either 5 mg or 10 mg of methadone hydrochloride. Each tablet contains the following inactive ingredients: magnesium stearate, microcrystalline cellulose and pregelatinized starch. Methadone HCl Structure