. . . "il in water, such as castor oil, is called a emulsion ??? ??? ??? Nitroglycerine is used for treatment of angina pectoris ??? ??? ??? Hydrocortisone is a drug used to suppress inflammation ??? ??? ??? Schedule I drugs include substances that have no accepted medical use and a high potential for abuse ??? ??? ??? Schedule IV drugs include minor tranquilizers and hypnotics that have a lesser potenti" .