synthetic drug used in the treatment of moderate to severe pain. It is an opioid analgesic, and thus its effects on the body resemble those of opium ... [3 related articles] Found on http://www.britannica.com/eb/a-z/m/72
<chemical> 1-methyl-4-phenyl-4-piperidinecarboxylic acid ethyl ester. A narcotic analgesic that can be used for the relief of most types of moderate to severe pain, including postoperative pain and the pain of labour. Prolonged use may lead to dependence of the morphine type; withdrawal symptoms appear more rapidly than with morphine and are ... Found on http://www.encyclo.co.uk/local/20973
(mĕ-per´ĭ-dēn) a synthetic opioid analgesic; the hydrochloride salt is used as an analgesic to relieve moderate to severe pain, including during childbirth, and as an adjunct to anesthesia. Administered orally, intramuscularly, subcutaneously, or intravenously. Abuse of this drug may lead to depende... Found on http://www.encyclo.co.uk/local/21001