Professor Sami A.Khalid – Dean-Faculty of Pharmacy- University of Science and Technology- P.O Box 447 Omdurman, Sudan -mobile phone:+249912146087(khalidseek@hotmail.com)

Dr. Bashier Osman –Associate professor- Dean of Faculty of Pharmacy- University of Khartoum.(bibrahim@uofk.edu)

Dr. Alnada Abdalla Mohamed-Head department of Pharmaceutics-Faculty of Pharmacy-University of Khartoum-Sudan;phone:+249-912218589;

e-mail:alnadamohamed@uofk.edu.

Dr.Sania A.I.Shaddad-associate professor –department of Pharmacology- faculty of medicine – university of Khartoum-Sudan. Phone: +249- 912659077 ; email:sania.shaddad@gmail.com