Whats a good introduction and thesis statement for a drug abuse essay?

   As you may already know, drugs can be some of the best things known to mankind-they solve illnesses, provide some relief from the killer pollen levels, and even stop that annoying nasal congestion you get in the winter season. Although many people don't think about it often, drugs can be just as dangerous as they are good if too much or too many are taken. Drug abuse is a very serious problem that can often lead to serious health complications... the same type of complications that may determine life or death if not treated. Then go on to explain what your major points are and include lots of elaboration in you up-coming paragraphs and conclusion.