Dependence/Addiction
Some of the medications used for the treatment of pain can lead to dependency. Working closely with a medical provider to track your drug use reduces that risk. Addiction is often confused with physical dependence or tolerance. Physical dependence means there will be withdrawal symptoms if the drug is suddenly stopped. Tolerance means that the initial dose of medication no longer works as well, or a bigger dose is needed to get the same results as before. Addiction means that the person wants more of the drug and keeps using it regardless of negative consequences. Most people who take pain medications as prescribed by their doctor will not have a problem with addiction. Those with a family history or past problem with addiction may be more at risk.
For more information: http://www.webmd.com/content/article/100/105622.htm