Khat is banned around the world, but not in the UK. Now there are fears this herbal stimulant could cause lasting damage to a community in Wales.
Catch the full programme on Wales This Week, Monday at 8pm on ITV Cymru Wales
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Susan Wellings suffers from severe pain caused by gallstones but has been left waiting for surgery after doctors refused to operate.
Owain Vaughan, 14, took the drug and was rushed to hospital after suffering severe fits, burst blood vessels and being violently sick.
ITV Cymru Wales today announces its extensive line up of coverage of General Election 2015 across news, programmes and online.