Now that we have fully examined the problem of driving under the influence, it is necessary to look at what drugs make this such a deadly problem.

These drugs range from simple, over-the-counter drugs -- as common as aspirin, up to narcotics such as cocaine. Of course, alcohol plays a major role. This chapter is meant to serve as a quick introduction to the kinds of drugs which are commonly found in DUI-related crashes. The next chapter will discuss how these different kinds of drugs can affect the way you function and drive.