Drug overdoses are the leading cause of death for Americans under 50. Any drug overdose can be either accidental or intentional. Accidental overdoseshappen when people take more of a prescription medication than originally intended to achieve certain results, or when they use too much of an illegal drug trying to get a better high. Intentional overdosesare usually a result of someone trying to commit suicide. Regardless of the intent, any loss of life due to an overdose is tragic and any overdose can have severe and lasting repercussions.