A highly dangerous synthetic cannabis is either sprayed on to herbal smoking material or added to cigarettes in powder form.
Public Health England says the chemicals known as 'spice' can cause sickness and convulsions - and while there haven't been any cases recorded in Devon, the substance may well be available here.
The Exeter drug and alcohol charity RISE wants to pass the warning on to local residents.
“Disappointment” over North Devon funding settlement
There could be up to a five per cent drop in core spending power
Controversial Exeter road consultation to begin in the New Year
Drivers ‘rat-run’ through hospital to dodge Exeter road closure
Exeter care agency rated 'inadequate' and in special measures
Bosses at Horizon Care insist change
Raw sewage spews into Plymouth suburb estate and woods
Concerns raised for public health and wildlife in Woolwell
Councillor stands under trees to stop chainsaw massacre
Emergency preservation order now in place
