Three synthetic cannabis substances being sold in some dairies are to be banned by the Government and are expected to be off the shelves by the end of next week.



The latest substances to be banned have been identified as the chemicals AM-1248, AM-2232 and UR-144 and have been found in products called Spice Gold, Spice Diamond and Tai High.



Associate Health Minister Peter Dunne said the latest ban would bring to 24 the number of substances to be outlawed under temporary class drug notices.



The notices came into effect with the passing of the Misuse of Drugs Act in August 2011.



They act as a holding measure until permanent legislation is introduced this year requiring manufacturers to meet safety levels before their produces can be sold.