OTHERS Substance Street Names Medical Use Effects of Abuse Ketamine "Special K", "K", "Kit Kat", "vitamin K" Surgical anaesthetic Slurred speech Impaired long-term memory & cognitive difficulties Impaired motor function Deficiency in motor coordination and impairment in executive function Respiratory/ heart problems Tolerance/ dependence Marked discomfort in passing urine, reduced bladder volume, frequent visits to toilet, incontinence, renal failure Derivatives of piperazine e.g. TFMPP None None Vomiting Headache Palpitations Anxiety Insomnia Confusion irritability and tremors Grand mal seizures Synthetic cannabinoids "K2", "SPICE" None Hallucinations Increased agitation Elevated blood pressure and heart rates Seizures Derivatives of cathinone e.g Mephedrone "Meow Meow" None Altered level of consciousness Memory problems and blood circulation problems Erratic behaviour, hallucinations and delusions Cough Medicine: Codeine Dextromethorphan "Robo", "DXM" None Cough suppressant Dependence Respiratory depression Toxic psychosis Constipation Loss of appetite Dizziness Alcohol None None Dependence Liver damage Toxic neurologic damage Tobacco None None Habituation Lung damage Organic Solvents None None Impaired perception Loss of coordination and judgement Respiratory depression and brain damage Last revision date: 12 April 2011