Formulation of perspective hepatoprotector polymeric forms based on silybin and ursodeoxycholic acid

Resumo

Silybin (Slb) and ursodeoxycholic acid (UDCA) are hepatoprotectors used in the pathogenetic therapy of liver and biliary tract. However, low bioavailability of these drugs restricts their application. In order to solve this problem, Slb and UDCA were incorporated into polymer carriers based on polylactic acid and poly(lactic-co-glycolic acid) by nanoprecipitation. The polymeric forms obtained according to the developed and optimized method are nanoparticles with a size from 100 to 200 μm. In vitro experiments showed a 1.5–2-fold higher hepatoprotective activity of Slb- and UDCA-containing polymeric nanoparticles compared to free substances.