A warning has been issued to people in Fife of the dangers of using potentially-fatal synthetic cannabis.
The “legal high”, sometimes known as spice, mimics the effects of cannabis.
It has been linked with deaths in Europe and in the UK people have been hospitalised after taking it.
Those who do use it have been urged to seek urgent medical help if they or someone else falls ill.
Dr Michael Armanyous, consultant psychiatrist in NHS Fife addiction services, said: “Although synthetic cannabis is marketed as legal, people have to be aware that this does not mean that it is safe.
“So-called legal highs do not come with any quality control, so users are unaware of what is really being provided.
“People have recently been reporting feeling dizzy, persistent vomiting, chest pains, palpitations, and convulsions after taking synthetic cannabis.
“These symptoms can be life threatening, and should not be ignored.
“If you suspect someone may be having a bad reaction or overdose due to the substances they have taken the simple advice is to seek emergency help by calling 999 and asking for an ambulance.”
Councillor Ian Sloan, chairman of Fife Alcohol and Drug Parntership’s working group on psychoactive substances, said: “This health warning highlights the dangers of so-called legal highs.”