Teens who use abuse prescription drugs such as narcotic painkillers are more likely to have sex or to participate in risky sexual behaviors, a new study suggests...The study looked at a variety of prescription drugs that might be used recreationally by teens. These included the prescription painkillers Oxycontin, Vicodin, Percocet or codeine; sedatives such as Xanax or Ativan; or stimulant drugs used to treat attention-deficit hyperactivity disorder (ADHD), such as Adderall or Ritalin.