Demerol is an opioid pain killer with effects similar to that of heroin, including the occurrence of a state of euphoria. The drug is the brand name of meperidine and comes in two different forms of medication: tablet and liquid.
Demerol, also known by its generic name Meperidine is an opioid medication. Opioid drugs are sometimes also known as Narcotic drug due to their similarity in working and acting on the body. Demerol is a drug that is used mainly for treating pain in a human body.