Order Demerol Online , also known by its generic name meperidine, is a potent opioid analgesic primarily used to manage moderate to severe pain. It belongs to the class of drugs known as synthetic opioids, which are chemically manufactured to mimic the effects of natural opiates like morphine and codeine. First synthesized in 1939 by German chemists searching for a less addictive alternative to morphine, Demerol has since become an integral part of pain management protocols in hospitals and clinical settings worldwide.