Prescription drug addiction is now one of the nation's most serious drug problems. More Americans are abusing controlled prescription drugs more than cocaine, hallucinogens, inhalants, and heroin combined. With the exception of marijuana, prescription painkillers are the most widely abused drug in the U.S. Many who are addicted to prescription drugs are "unwitting addicts"--They have no history of drug abuse, but become addicted after taking a drug for legitimate reasons. Rod Colvin understands this problem. His 35-year old brother died as a result of his long-term addiction to paink.