- Pharmacokinetics of oral zidovudine entrapped in biodegradable nanospheres in rabbits. Callender, D.P., Jayaprakash, N., Bell, A., Petraitis, V., Petraitiene, R., Candelario, M., Schaufele, R., Dunn, J.M., Sei, S., Walsh, T.J., Balis, F.M., Petratienes, R. Antimicrob. Agents Chemother. (1999)