Health Minister Lesley Griffiths says she does not consider mephedrone use 'a huge problem' in Wales.
But she added that educating people about it now will raise awareness of the dangers and help prevent people trying the substance in future.
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Manchester United teenager Regan Poole has been added to Wales' Under-21 squad for the Euro 2017 qualifiers against Denmark and Luxembourg.
It will be a fine day with some long spells of sunshine, and it will be feeling warm.
Social media is increasingly damaging young people’s mental health, with higher risks over the summer, national helpline warns.