This list does not necessarily include all brand names. Narcotic analgesics act on the central nervous system to relieve pain. When narcotics are used over a long period of time, the body becomes used to the narcotic and begins to require more of the drug to achieve the same relief. They cause both physical and mental dependence. As a result of physical dependence, they may cause withdrawal symptoms when the medication is stopped abruptly.
Some narcotics also help control coughing and diarrhea .
Narcotic analgesics are used to help relieve pain, stop coughing , and stop diarrhea . Methadone is sometimes used to treat chronic pain. It may also be used to minimize withdrawal symptoms when people stop taking other narcotics. Do not take more than one narcotic at a time unless instructed to do so by the health care provider. The syrup form of meperidine needs to be mixed with about 4 oz of water to minimize numbing of the mouth and throat, unless otherwise instructed by the health care provider.