1. Baboota S, Shakeel F, Ahuja A, Ali J, Shafiq S (2007) Design development and evaluation of novel nanoemulsions formulations for transdermal potential of celecoxib. Acta Pharm 8:316–332
2. Barry BW (1983) Dermatological Formulations. Marcel Dekker Inc., New York, pp 49–94
3. Busson MJ (1986) Update on ibuprofen: review article. J Int Med Res 14:53–62
4. Chang SY, Park SB, Jung JH, Shon SI, Yoon HJ (1997) Iburpofen heterocyclic esters as dermal prodrugs: in vitro evaluation. S T P Pharma Sci 7:315–319
5. Chen H, Chang X, Du D, Li J, Xu H, Yang X (2006a) Microemulsion-based hydrogel formulation of ibuprofen for topical delivery. Int J Pharm 315:52–58