The Saudi Pharmaceutical Journal (SPJ) is the official journal of the Saudi Pharmaceutical Society (SPS) publishing high quality clinically oriented submissions which encompass the various disciplines of pharmaceutical sciences and related subjects. SPJ publishes 8 issues per year by the Saudi Pharmaceutical Society, with the cooperation of the College of Pharmacy, King Saud University. All articles published in Saudi Pharmaceutical Journal have undergone a full peer review and are: Scientifically sound In compliance with international research and publishing ethics Written in clear, concise and correct English A valid, contribution to the existing literature and of educational value to the specific community and readers Not previously published material The journal publishes full-length articles, short reviews (n ot exceeding 12 pages which are intended to debate the recent advances in rapidly developing fields), short communications, case studies, letters to the editor and book reviews.