According to a National Institute on Drug Abuse research report, there are three classes of prescription drugs that are most commonly abused:
1- opioids, which are most often prescribed to treat pain – examples include: codeine, oxycodone (OxyContin and Percocet), and morphine (Kadian and Avinza);
2- central nervous system (CNS) depressants, which are used to treat anxiety and sleep disorders – examples include: barbiturates (Mebaral and Nembutal) and benzodiazepines (Valium and Xanax);
3- stimulants, which are prescribed to treat the sleep disorder narcolepsy, attention-deficit hyperactivity disorder (ADHD), and obesity – examples include: dextroamphetamine (Dexedrine and Adderall) and methylphenidate (Ritalin and Concerta).
Many people benefit from the appropriate use of prescription pain killers, but, when abused, they can be as addictive and dangerous as illegal drugs. Prescription drugs should only be taken exactly as directed by a medical professional.