Abstract
The in vivo assessment of percutaneous absorption of molecules is a very important step in the evaluation of any transdermal drug delivery system and a key goal in the design and optimization of transdermal dosage forms lies in understanding the factors that determine a good in vivo performance. The objective of the present investigation is to assess the in vivo performance of an optimized transdermal system of ondansetron hydrochloride in rabbits and to generate preclinical pharmacokinetic data. The pharmacokinetic performance of ondansetron hydrochloride following intravenous and transdermal administration was studied in rabbits following non compartmental pharmacokinetic analysis. The pharmacokinetic parameters such as area under the curve, elimination rate constant, elimination half life and mean residence time, were significantly (P < 0.01) different following transdermal administration compared to intravenous administration. Absolute bioavailability of the transdermal film studied was estimated to be 0.37 ± 0.06 which is quite low because a very high drug loading in the transdermal system was essential to achieve sufficient thermodynamic activity for transdermal permeation. Though in vivo studies in rabbits are found promising, investigations in healthy human subjects are essential to confirm the performance of the developed transdermal films.
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Swain, K., Pattnaik, S., Yeasmin, N. et al. Preclinical evaluation of drug in adhesive type ondansetron loaded transdermal therapeutic systems. Eur J Drug Metab Pharmacokinet 36, 237–241 (2011). https://doi.org/10.1007/s13318-011-0053-x
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DOI: https://doi.org/10.1007/s13318-011-0053-x