transdermal patch {Ans: the drug is released and absorbed through the skin into the bloodstream providing a continuous source of the drug (usually over 24 hours)}factors that affect drug response {Ans: age, weight, sex, genetic variation}suppositories {Ans: a drug that is mixed with another substance that will allow it to melt at body temperature. generally inserted through the rectum, urethra, or vagina}half-life {Ans: the amount of time it takes for 50% of a given drug to be removed from the body}as you age, distribution is ____ {Ans: increased}site of action {Ans: the location within the body where a drug exerts its theraputic effect}inactive ingrediant {Ans: helps facilitate the administration and absorption of the drug}cytochrome P-450 {Ans: large class of enzymes that play a significant role in drug metabolism and drug interactions}drug abuse {Ans: begin using the drug for non-medical purposes}scheduled drug class 1 {Ans: high abuse potential and no accepted medical use (ex. heroin, marijuana)}theraputic effect {Ans: the desired effect of a drug}metabolism {Ans: biochemical alteration of a drug into a metabolite}antagonist {Ans: drug binds to the receptor; there is NO response AND it prevents other agonists