Acosta, E. P. and C. V. Fletcher (1997). Valacyclovir. Ann Pharmacother 31(2): 185-91.
Anomasiri, W., S. Sanguanrungsirikul, et al. 2004. Low dose creatine supplementation enhances sprint phase of 400 meters swimming performance. J Med Assoc Thai 87 Suppl 2: S228-32.
Beaumont, K., R. Webster, I. Gardner and K. Dack (2003). Design of ester prodrugs to enhance oral absorption of poorly permeable compounds: challenges to the discovery scientist. Curr Drug Metab 4(6): 461-85.
Brudnak, M. A. 2004. Creatine: are the benefits worth the risk? Toxicol Lett 150(1): 123-30.
Chang, Y., Kang, S., Ko, S., Park, W. (2006). Pretreatment with N-nitro-L-arginine methyl ester improved oxygenation after inhalation of nitic oxide in newborn piglets with Escherichia coli pneumonia and sepsis. J Korean Medical Science 21: 965-72.
De Clercq, E. and H. J. Field (2006). Antiviral prodrugs - the development of successful prodrug strategies for antiviral chemotherapy. Br J Pharmacol 147(1): 1-11.
Dempsey, R. L., M. F. Mazzone, et al. 2002. Does oral creatine supplementation improve strength? A meta-analysis. J Fam Pract 51(11): 945-51.
Eksborg, S., N. Pal, M. Kalin, C. Palm and S. Soderhall (2002). Pharmacokinetics of acyclovir in immunocompromized children with leukopenia and mucositis after chemotherapy: can intravenous acyclovir be substituted by oral valacyclovir? Med Pediatr Oncol 38(4): 240-6.
Falk, D. J., K. A. Heelan, et al. 2003. Effects of effervescent creatine, ribose, and glutamine supplementation on muscular strength, muscular endurance, and body composition. J Strength Cond Res 17(4): 810-6.
Feldman, E. B. 1999. Creatine: a dietary supplement and ergogenic aid. Nutr Rev 57(2): 45-50.
Froiland, K., W. Koszewski, et al. 2004. Nutritional supplement use among college athletes and their sources of information. Int J Sport Nutr Exerc Metab 14(1): 104-20.
Greenwood, M., J. Farris, et al. 2000. Creatine supplementation patterns and perceived effects in select division I collegiate athletes. Clin J Sport Med 10(3): 191-4.
Han, H., R. L. de Vrueh, J. K. Rhie, K. M. Covitz, P. L. Smith, C. P. Lee, D. M. Oh, W. Sadee and G. L. Amidon (1998). 5'-Amino acid esters of antiviral nucleosides, acyclovir, and AZT are absorbed by the intestinal PEPT1 peptide transporter. Pharm Res 15(8): 1154-9.
Han, H. K., D. M. Oh and G. L. Amidon (1998). Cellular uptake mechanism of amino acid ester prodrugs in Caco-2/hPEPT1 cells overexpressing a human peptide transporter. Pharm Res 15(9): 1382-6.
Hoffman, J. R., J. R. Stout, et al. 2005. Effect of low-dose, short-duration creatine supplementation on anaerobic exercise performance. J Strength Cond Res 19(2): 260-4.
Huang, S. H., K. Johnson, et al. 2006. The use of dietary supplements and medications by Canadian athletes at the Atlanta and Sydney Olympic Games. Clin J Sport Med 16(1): 27-33.
Jonas, A. J. and I. J. Butler (1989). Circumvention of defective neutral amino acid transport in Hartnup disease using tryptophan ethyl ester. J Clin Invest 84(1): 200-4.
Javierre, C., J. R. Barbany, et al. 2004. Creatine supplementation and performance in 6 consecutive 60 meter sprints. J Physiol Biochem 60(4): 265-71.
Kim, D. K., N. Lee, H. T. Kim, G. J. Im and K. H. Kim (1999). Synthesis and evaluation of 2-amino-6-fluoro-9-(4-hydroxy-3-hydroxymethylbut-1-yl)purine mono- and diesters as potential prodrugs of penciclovir. Bioorg Med Chem 7(3): 565-70.
Kim, D. K., N. Lee, Y. W. Kim, K. Chang, G. J. Im, W. S. Choi and K. H. Kim (1999). Synthesis and evaluation of amino acid esters of 6-deoxypenciclovir as potential prodrugs of penciclovir. Bioorg Med Chem 7(2): 419-24.
Kocak, S. and U. Karli. 2003. Effects of high dose oral creatine supplementation on anaerobic capacity of elite wrestlers. J Sports Med Phys Fitness 43(4): 488-92.
Kraemer, W. J. and J. S. Volek. 1999. Creatine supplementation. Its role in human performance. Clin Sports Med 18(3): 651-66, ix.
Kreider, R. B. 2003. Effects of creatine supplementation on performance and training adaptations. Mol Cell Biochem 244(1-2): 89-94.
LaBotz, M. and B. W. Smith. 1999. Creatine supplement use in an NCAA Division I athletic program. Clin J Sport Med 9(3): 167-9.
Lunardi, G., A. Parodi, et al. 2006. The creatine transporter mediates the uptake of creatine by brain tissue, but not the uptake of two creatine-derived compounds. Neuroscience 142(4): 991-7.
McGuine, T. A., J. C. Sullivan, et al. 2002. Creatine supplementation in Wisconsin high school athletes. Wmj 101(2): 25-30.
McGuine, T. A., J. C. Sullivan, et al. 2001. Creatine supplementation in high school football players. Clin J Sport Med 11(4): 247-53.
Mendes, R. R., I. Pires, et al. 2004. Effects of creatine supplementation on the performance and body composition of competitive swimmers. J Nutr Biochem 15(8): 473-8.
Mendes, R. R. and J. Tirapegui. 2002. [Creatine: the nutritional supplement for exercise - current concepts]. Arch Latinoam Nutr 52(2): 117-27.
Metzl, J. D., E. Small, et al. 2001. Creatine use among young athletes. Pediatrics 108(2): 421-5.
Mizen, L. and G. Burton (1998). The use of esters as prodrugs for oral delivery of beta-lactam antibiotics. Pharm Biotechnol 11: 345-65.
Morrison, L. J., F. Gizis, et al. 2004. Prevalent use of dietary supplements among people who exercise at a commercial gym. Int J Sport Nutr Exerc Metab 14(4): 481-92.
Okudaira, N., T. Tatebayashi, G. C. Speirs, I. Komiya and Y. Sugiyama (2000). A study of the intestinal absorption of an ester-type prodrug, ME3229, in rats: active efflux transport as a cause of poor bioavailability of the active drug. J Pharmacol Exp Ther 294(2): 580-7.
Ostojic, S. M. 2004. Creatine supplementation in young soccer players. Int J Sport Nutr Exerc Metab 14(1): 95-103.
Poortmans, J. R. and M. Francaux. 2000. Adverse effects of creatine supplementation: fact or fiction? Sports Med 30(3): 155-70.
Rawson, E. S. and J. S. Volek. 2003. Effects of creatine supplementation and resistance training on muscle strength and weightlifting performance. J Strength Cond Res 17(4): 822-31.
Reeves, J. P. (1979). Accumulation of amino acids by lysosomes incubated with amino acid methyl esters. J Biol Chem 254(18): 8914-21.
Reeves, J. P. and T. Reames (1981). ATP stimulates amino acid accumulation by lysosomes incubated with amino acid methyl esters. Evidence for a lysosomal proton pump. J Biol Chem 256(12): 6047-53.
Sawada, K., T. Terada, H. Saito, Y. Hashimoto and K. I. Inui (1999). Recognition of L-amino acid ester compounds by rat peptide transporters PEPT1 and PEPT2. J Pharmacol Exp Ther 291(2): 705-9.
Silber, M. L. 1999. Scientific facts behind creatine monohydrate as sport nutrition supplement. J Sports Med Phys Fitness 39(3): 179-88.
Tarnopolsky, M. A., G. Parise, et al. 2001. Creatine-dextrose and protein-dextrose induce similar strength gains during training. Med Sci Sports Exerc 33(12): 2044-52.
Volek, J. S., N. D. Duncan, et al. 2000. No effect of heavy resistance training and creatine supplementation on blood lipids. Int J Sport Nutr Exerc Metab 10(2): 144-56.
Wellner, V. P., M. E. Anderson, R. N. Puri, G. L. Jensen and A. Meister (1984). Radioprotection by glutathione ester: transport of glutathione ester into human lymphoid cells and fibroblasts. Proc Natl Acad Sci U S A 81(15): 4732-5.