Journal of Chemical and Pharmaceutical Research Journal of Chemical and Pharmaceutical Research is an online international journal to promote all fields of Chemical Sciences like Organic Chemistry, Green Chemistry, Photochemistry, Inorganic Chemistry, Physical Chemistry, Industrial Chemistry, Biochemistry, Environmental Chemistry, Agricultural and Soil Chemistry, Analytical Chemistry, Polymer Chemistry, Macromolecular Chemistry, Petroleum Chemistry, Forensic Chemistry and Phytochemistry as well as all aspects of Chemical Engineering etc. rss//rss/jocpr-volume-12-issue-1-year-2020.xml Journal of Chemical and Pharmaceutical Research Volume 12, Issue 1 Preparation Characterization and In Vitro Evaluation of Parenteral Olanzapine Microspheres Loaded in Malaysian Mastic Polymer Mohammed Gameel Al-Haddad, Khaled Al-Tahami and Gamil Qasem Othman Phytochemical Screening and Nutritional Compositions of Onion Bulbs and Tomato Fruits Grown around Arba Minch City Ethiopia Tolera Seda Badessa, Alemayehu Biru, and Solomon Sime Tesema Simultaneous Determination of Meclizine Hydrochloride in Its Mixtures with Pyridoxine Hydrochloride Caffeine or Nicotinic Acid Using HPLC and TLCDensitometric Methods Sonia T Hassib, Ramzia I El-Bagary, Elham A Taha and Ghada H Barakat