Medications obtained by ordinary retail purchase, with no need for a prescription or licence. The mucous membrane lining the inside of the mouth. Not psychoactive, that is, not producing an effect (such as changes in perception or behaviour) on the mind or mental processes. Opium based pain medications such as codeine or morphine, illicit forms of narcotics include heroin. Movements and actions of the bone structures (body). Drug metabolism is the process by which the body breaks down and converts medication into active chemical substances. Cannabis prescribed to relieve the symptoms of a medical condition, such as epilepsy. A doctor or surgeon. Produced and processed in controlled standard conditions to a medical grade, free of contaminants Blood tests used to provide information about how your liver is working. They test the levels of a number of proteins and enzymes that are either produced by liver cells or released into the blood when liver cells are damaged.