GALENIC PREPARATION WITH PROLONGED RELEASING MOLSIDOMINE DESIGNATED FOR ORAL ADMINISTRATION Russian patent published in 2005 - IPC

FIELD: medicine, pharmacy.

SUBSTANCE: invention concerns a new oral formulation of the galenic preparation molsidomine with prolonged releasing an active substance and designated in treatment of stenocardia attack in all its variations (stress stenocardia, spastic stenocardia, nonstable stenocardia). This novel formulation of galenic preparation comprises the therapeutically effective dose of molsidomine or one of its active metabolites and shows the following dissolving rate values in vitro [measured by spectrophotometry method at wavelength 286 or 311 nm according to a method reported in Pharmacopee Europeene, 3-d edition (or U. S. P. XXIV) at 50 rev./min in 500 ml of medium consisting of 0.1 N HCl at 37°C]: 15-25% of molsidomine released in 1 h; 20-35% of molsidomine released in 2 h; 50-65% of molsidomine released in 6 h; 75-95% of molsidomine released in 12 h; >85% of molsidomine released in 18 h, and >90% of molsidomine released in 24 h wherein the maximal blood plasma concentration of molsidomine in vivo appears in 2.5-5 h but preferably in 3-4 h after intake of abovementioned formulation and has value from 25 to 50 ng/ml of blood plasma. Invention provides reducing amount of doses of drug per a day that is more suitable for a patient.

EFFECT: improved and valuable pharmaceutical properties of preparation.

14 cl, 5 dwg, 2 tbl, 7 ex