| Title | Effect of microneedle on the pharmacokinetics of ketoprofen from its transdermal formulations. | | Author(s) | So JW, Park HH, Lee SS, Kim DC, Shin SC, Cho CW | | Institution | College of Pharmacy, Chungnam National University, Daejeon, South Korea. | | Source | Drug Deliv 2009 Jan; 16(1):52-6. | | Abstract | Non-invasive transdermal delivery using microneedle arrays was recently introduced to deliver a variety of large and hydrophilic compounds into the skin, including proteins and DNA. In this study, a microneedle array was applied to the delivery of a hydrophobic drug, ketoprofen, to determine if transdermal delivery in rats can be improved without the need for permeation enhancers. The ability of a microneedle to increase the skin permeability of ketoprofen was tested using the following procedure. A microneedle array was inserted into the lower back skin of a rat using a clip for 10 min. Subsequently, 24 mg/kg of a ketoprofen gel was loaded on the same site where the microneedle had been applied. Simultaneously, the microneedle was coated with 24 mg/kg of a ketoprofen gel, and inserted into the skin using a clip for 10 min. As a negative control experiment, only 24 mg/kg of the ketoprofen gel was applied to the shaved lower back of a rat. Blood samples were taken at the indicated times. The plasma concentration (C(p)) was obtained as a function of time (t), and the pharmacokinetic parameters were calculated using the BE program. The group loaded with the microneedle coated with ketoprofen gel showed a 1.86-fold and 2.86-fold increase in the AUC and C((max)) compared with the ketoprofen gel alone group. These results suggest that a microneedle can be an ideal tool for transdermal delivery products. | | Language | eng | | Pub Type(s) | Journal Article
| | PubMed ID | 19555309 |
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