Meperidine Meperidine is a synthetic narcotic analgesic drug, also known as a painkiller. It is a synthetic analgesic unrelated to morphine, but similar in effect. It can be very addictive. It has many different names, such as Demerol, Mepergan, and Pethadol. Its proper name is Meperide hydrochloride.
Meperidine injection (Demerol) is a medication used to relieve moderate to severe pain. Demerol is a narcotic analgesic given by injection. Side effects (notify your doctor immediately if you develop a rapid heart rate, faint, have mood changes, irritability, anxiety, etc.), precautions, drug interactions, and pregnancy safety information should be reviewed prior to taking this medication.