RESUMO
<p><b>OBJECTIVE</b>To investigate the effects of labrasol, solutol HS 15 and transcutol P on the corneal permeability of mangiferin in vitro.</p><p><b>METHOD</b>The effects of three penetration enhancers on the corneal permeability of mangiferin were investigated in vitro by using isolated rabbit corneas.</p><p><b>RESULT</b>The apparent Papp enhancements were increased 1.80, 3.27, 3.41 and 4.76-folds with Lab at 1.0%, 1.5%, 2.0% and 3.0% (P < 0.01), respectively. The apparent Papp increased 1.98 and 3.07-folds with Sol at 0.2% and 0.4% (P < 0.01), respectively, but reduced with 0.010%-0.03% Trans.</p><p><b>CONCLUSION</b>The Papp value of mangiferin is significantly enhanced by 1.0%-3.0% Lab, 0.2% and 0.4% Sol, however the Papp value of mangiferin is reduced by 0.01%-0.03% Trans.</p>