The class includes morphine, codeine, and a number of semi-synthetics including meperidine (Demerol), propoxyphen (Darvon), and others.
Synthetic compounds that resemble morphine in their chemical structure: Narcotics in this group include fentanyl (Duragesic), levorphanol (Levo-Dromoran), meperidine (Demerol), methadone, and propoxyphene (Darvon).
Teenagers are particularly likely to begin experimenting with narcotics in the form of prescription cough syrup and such pain relievers as Darvon or Oxy-Contin and to combine narcotics with alcohol or other drugs of abuse.
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