вторник, 26 февраля 2008 г.

Promethazine hydrochloride, phenylephrine hydrochloride and codeine phosphate(promethazine hydrochloride, phenylephrine hydrochloride and codeine phosphate) syrup [actavis mid atlantic llc]

7%.Inactive Ingredients: Citric acid, D&C Red #33, D&C Yellow #10, FD it is classified pharmacologically as a narcotic analgesic.Phosphate may be chemically designated as 7,8-Didehydro-4,5О±-epoxy-3-methoxy-17-methylmorphinan-6О±-ol phosphate (1:1)(salt) hemihydrate.The phosphate salt of codeine occurs as white, needle-shaped crystals or white crystalline powder.Phosphate is freely soluble in water and slightly soluble in alcohol.Has a molecular weight of 406.Molecular formula of C18H21NO3 H3PO4 H2O and the following structural formula: Promethazine hydrochloride, a phenothiazine derivative, is chemically designated as ()-10- phenothiazine monohydrochloride.Promethazine hydrochloride occurs as a white to faint yellow, practically odorless, crystalline powder which slowly oxidizes and turns blue on prolonged exposure to air.Is soluble in water and freely soluble in alcohol.Has a molecular weight of 320.Molecular formula of C17H20N2S HCl and the following structural formula: Phenylephrine hydrochloride is a sympathomimetic amine salt which is chemically indicated as (-)-m-Hydroxy-О±- benzyl alcohol hydrochloride.Occurs as white or nearly white crystals, having a bitter taste.Is freely soluble in water and alcohol.
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