"We think it's ridiculous that we've basically been experimenting on our kids by allowing the substances to come on the shelf and then trying to constantly chase our tails trying to get them off the shelf again."
Green Party drugs spokesman Kevin Hague said he supported the shift in principle, but the safety standards should not be unrealistically rigorous.
"It will be important to establish a reasonable standard of safety which accepts that there may be harms associated with consuming a particular product, but that adults should be free to make a decision to consume them," Mr Hague said.
If it was so strict that it amounted to effective prohibition, it could push party pills users toward harder, more dangerous drugs, he said.
He also believed that party pill makers could find ways to sidestep the new standards unless it covered all products made for human consumption.
"The industry has proved very adaptable and will attempt to define their products outside of the new provisions."
A total of 28 substances are currently on the temporary banned list, which was added to as recently as last week with a further four ingredients.
Mr Dunne said the bans would be rolled over as they expired to ensure there was no window for such drugs to go back on the market before permanent legislation took effect. The first lot is due for renewal next month.
Makers of the drugs said the temporary bans were futile because new products could be on the shelves for a while before the authorities noticed them.
