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난용성 항진균제 이트라코나졸의 액상제제화에 의한 생체이용율 개선
황우신,권광일,방규호,Hwang, Woo-Sin,Kwon, Kwang-Il,Bang, Kyu-Ho 대한약학회 2000 약학회지 Vol.44 No.6
This study was to develop an effective itraconazole liquid preparation which exhibits an enhanced bioavailability. The solubility of itraconazole was increased (72-fold) in itraconazole liquid preparation as compared with itraconazole powder. The dissolution rate of itraconazole was higher for itraconazole liquid preparation filled into a hard gelatin capsule with 90% release within 20 min as compared to 55% for $Sporanox^{\circledR}$capsules. The oral absorption of itraconazole liquid preparation and $Sporanox^{\circledR}$tablets were studied in the rat. The area under the concentration-time curve $(AUC_{0-24hr})$ of itraconazole liquid preparation ($90.25\;{\pm}\;8.36\;{\mu}g{\cdot}hr/ml$) increased by 6.2 times compared to that of Sporanox tablets ($14.58\;{\pm}\;1.26\;{\mu}g{\cdot}hr/ml$) after oral administration of itraconazole 15 mg/rat each. $C_{max}$ also increased to $6.87\;{\pm}\;1.15\;{\mu}g/ml$ after administration of liquid preparation $1.58\;{\pm}\;0.16\;{\mu}g/ml$ of $Sporanox^{\circledR}$tablets. These results indicate that in vivo bioavailability of itraconazole liquid preparation was significantly enhanced as compared with $Sporanox^{\circledR}$tablets.