Dr. Jekyll and Mr. Hyde:

             Jekyll becomes addicted and dependent upon a drug. This drug was not a "street drug", but just an experimental chemical drug that a chemist had made up-a sort of potion. Although the potion was made purely of compounded elements that had been boiled in a professional chemist's laboratory, they took very similar effects to that of which "street drugs" and even alcohol would. In the end, the once controlled good-willed man Dr. Jekyll had turned into the wicked Mr. Hyde, ruining not only his life, but others around him. The potion that Dr. Jekyll had created, brought out the evil in him, much like regular drugs can. The National Institute On Drug Abuse describes, that substance abuse addicts are unable to control the use of a drug, despite the negative effects they may have on their lives. Although Mr. Hyde comes out, and does awful doings, Dr. Jekyll can not control or stop it. .
             Dr. Jekyll confesses: .
             .
             "I knew well that I risked death; for any drug that so potentially controlled and shook the very fortress of identity, might, by the least scruple of an overdose or at the least inopportunity in the moment of exhibition, utterly blot out that immaterial tabernacle which I looked to it to change." (Stevenson 106) .
             Dr. Jekyll was fully aware of the damage that could take place by consuming the drug, but with the lingering temptation he went forth anyways. Once Dr. Jekyll had drank off the potion, a totally different man, or personality took over. The harmless Doctor, became this wretched, unpleasant man, Mr. Hyde. Dr. Jekyll explains the feelings as: .
             "The most raking pangs succeeded: a grinding in the bones, deadly nausea, and a horror of the spirit that cannot be exceeded at the hour of birth or death. There was something strange in my sensations, something indescribably new and, from its very novelty, incredibly sweet. I felt younger, lighter, happier in body; within I was conscious of a heady recklessness, a current of disordered sensual images running like a millrace in my fancy, a solution of the bonds of obligation, and unknown but not an innocent freedom of the soul.