What TV dramas, past and present, have dealt with the dark side of teen drug abuse?

I’m not talking about a show like Intervention, which is basically a documentary; I mean a scripted series that shows the horrible affects that drugs can have on teenagers, especially in a school setting, along the lines of Requiem for a Dream (although I realize it is not a TV show, nor about teenagers).

If there are none dealing with teenagers, adults are ok too.

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