Fabrication of the Components for a Sustained-Release Injectable Dosage Form of Acetylsalicylic Acid Using Supercritical Carbon Dioxide

Resumo

Fabrication of fine-grained (10–100 μm) bioresorbable powders of aliphatic polyesters containing therapeutically significant (up to 10 wt %) concentrations of acetylsalicylic acid using supercritical CO₂ is studied. The process for fabricating the components of sustained-release injectable dosage forms of acetylsalicylic acid is elaborated. The kinetics of release of acetylsalicylic acid from polylactide microparticles into the normal saline solution in vitro is studied by high-performance liquid chromatography.