ABSTRACT The main objective of this study is the preparation of different topical formulations of controlled release niosomal gel containing Ketorolac tromethamine (KT) niosomes to avert problems associated with KT such as gastrointestinal irritation and short half-life. Niosomes as a colloidal carrier of KT were prepared by ether injection method then incorporated into different gel bases as sodium alginate (Na ... Read more