STABLE OILY SUSPENSION OF MICROGRANULES

摘要

Pharmaceutical formulation obtainable subjecting conventional microgranules to an external seal-coating layer that avoids the penetration of liquid vehicle, and selecting a hydrophobic liquid vehicle with a viscosity high enough not to wet the microgranules. The seal-coating layer may be obtained by coating the microgranules with an aqueous suspension comprising film formers and plasticizers. The liquid vehicle is comprised of oily solvents, and viscosity agents. The formulation is presented in single dose sachets ready-to-use. This formulation enables the liquid oral administration of antiulcerous microgranules of benzimidazoles (omeprazole, lansoprazole, pantoprazole, rabeprazole), with several advantages comparing to commercially available extemporaneous suspensions. The new formulation of lansoprazole microgranules has a similar bioavailability and slightly higher stability than conventional hard gelatin capsules.