Enhanced Bioavailability of Itraconazole in Hydroxypropylβ-Cyclodextrin Solution versus Capsules in Healthy Volunteers |
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| Authors: | Joseph A. Barone Bruce L. Moskovitz Joseph Guarnieri Alan E. Hassell John L. Colaizzi Robert H. Bierman Lois Jessen |
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| Affiliation: | Rutgers—The State University of New Jersey, Piscataway,1. and Janssen Research Foundation, Titusville,2. New Jersey |
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| Abstract: | The bioavailabilities and bioequivalences of single 200-mg doses of itraconazole solution and two capsule formulations were evaluated in a crossover study of 30 male volunteers. The two capsule formulations were bioequivalent. The bioavailabilities of the solutions itraconazole and hydroxyitraconazole were 30 to 33% and 35 to 37% greater, respectively, than those of either capsule. However, the maximum concentrations of the drug in plasma (Cmax), the times to Cmax, and the terminal half-lives were comparable for all three formulations. These data indicate that the bioavailabilities of itraconazole and hydroxyitraconazole are enhanced when administered as an oral solution instead of capsules. |
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