The Drug Foundation's asking, why shouldn't teenagers be told how to take meth properly?

It comes after Massy High School students were given a booklet which outlined "ways to keep well" while using methamphetamine.

Drug Foundation director Ross Bell told Larry Williams while in an ideal world no one uses meth, we live in a world where people do.

"The biggest age group that uses meth are people aged 18 to 25. Even if they are not using it now in school, they are going into a world where meth is there."

Principal Glen Denham says no student sees the tips as a help guide for using meth because they're doing studies on the negatives of drugs.

LISTEN TO THE FULL INTERVIEW WITH LARRY WILLIAMS