The present invention relates to the extraction and hydrogenation of essential oil of a cannabis plant. The invention includes hydrogenated cannabis compounds and compositions as well as methods of preparation and therapeutic uses for regressing tumors in a cancer patient. The extract can include 9 tetrahydrocannabinoic acid and 9 cannabidiolic acid and the hydrogenated cannabis oil can include hydrogenated 9 tetrahydrocannabinoic acid hydrogenated 9 cannabidioc acid and mixtures and blends thereof.
