A new "generation" of party pills much stronger than those soon to be banned is already being developed to get around the new laws.

And the Government's looming party-pill ban has sparked a frenzy of sales, with users stockpiling their stashes and stores selling out within minutes of the law change being passed in Parliament.

The law classified the active ingredients in party pills, which includes benzylpiperazine (BZP), 3-Trifluoromethyl phenylpiperazine (TFMPP) and four similar substances, as Class C drugs -- the same as cannabis.

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