[EN] PHARMACEUTICAL COMPOSITIONS WITH IMPROVED DISSOLUTION<br/>[FR] COMPOSITIONS PHARMACEUTIQUES A DISSOLUTION AMELIOREE
申请人:TRANSFORM PHARMACEUTICALS INC
公开号:WO2004000284A1
公开(公告)日:2003-12-31
The invention relates to methods of screening mixtures containing a pharmaceutical compound an excipient to identify properties of the pharmaceutical compound/excipient combination that retard solid-state nucleation. The invention further relates to increasing the solubility, dissolution and bioavailability of a drug with low solubility in gastric fluids conditions by combining the drug with a recrystallization/precipitation retardant and an optional enhancer.
(EN) Compounds of formula (I) wherein R1-R8, A and B have the significance given in the description, are endothelin inhibitors and can be used for the treatment of disorders which are associated with endothelin activities, such as high blood pressure.(FR) Des composés de formule (I), où R1-R8, A et B ont la notation donnée dans le descriptif, sont des inhibiteurs de l'endothéline et peuvent s'utiliser pour le traitement de troubles associés aux activités de l'endothéline, tels que l'hypertension artérielle.
Pharmaceutical compositions with improved dissolution
申请人:Tawa Mark
公开号:US20060134198A1
公开(公告)日:2006-06-22
The invention relates to methods of screening mixtures containing a pharmaceutical compound and an excipient to identify properties of the pharmaceutical compound/excipient combination that retard solid-state nucleation. The invention further relates to increasing the solubility, dissolution and bioavailability of a drug with low solubility in gastric fluids conditions by combining the drug with a precipitation retardant and an optional enhancer.
An orally deliverable pharmaceutical composition is provided comprising an aminosulfonyl-comprising drug, for example a selective cyclooxygenase-2 inhibitory drug such as celecoxib, and a solvent liquid comprising a polyethylene glycol and one or more free radical-scavenging antioxidants. At least a substantial part of the drug is in dissolved form in the solvent liquid. The composition has rapid-onset properties and is useful in treatment of cyclooxygenase-2 mediated conditions and disorders.
A pharmaceutical composition that is substantially free of water comprises at least one orally deliverable dosage unit comprising a therapeutically effective amount of a sulfonamide prodrug and, where the prodrug is readily degradable ex vivo, has means to inhibit such degradation prior to oral administration. Illustratively the prodrug is parecoxib or a water-soluble salt thereof, and the composition has means to inhibit conversion of the parecoxib to valdecoxib. A method of treating or preventing a COX-2 mediated disorder in a subject comprises (a) dissolving at least one dosage unit of such a composition in a pharmaceutically acceptable aqueous vehicle to form a solution, and (b) orally administering the solution to the subject before substantial precipitation of insoluble matter occurs in the solution.