People tend to think of drugs like heroin or cocaine, or alcohol or tobacco, when discussing drug addictions. But many pharmaceutical preparations, available by prescription only, are also addictive. If a person builds up tolerance to a prescription drug and starts taking larger doses—a common occurrence—harm can result. Hollister (1991) notes, “Abuse of legal, prescription drugs accounts levitra medicamento for the majority of drug-related Emergency Room visits”. Prescription drug abuse is also one of the fastest-increasing forms of drug abuse among teenagers. While the rates of other tobacco use and other forms of drug abuse have been declining or holding steady, rates of prescription drug abuse have been climbing in recent years.
Sometimes “the word gets out” about prescription drugs that are more dangerous than first thought. Valium is a good example. In the mid-1970s, it was an extremely common prescription, encouraged by large-scale advertising in medical journals that made it sound completely safe. After the levitra medicamento consequences of Valium addiction became widely known, the number of prescriptions declined greatly. By the end of the century, benzodiazepine abuse was comparatively rare.