Demerol® (meperidine hydrochloride) is one of narcotic analgesic which has the same action to those of morphine as 
an analgesia and sedation. Some clinicians suggest that meperidine can reduce muscle spasm, constipation, and depression of the cough reflex than the same analgesic dose of morphine. In other words, the Demerol® is indicated for relieving moderate to severe pain.
In this article below, we can find sections about what is Demerol® in a depth desciptions such as substance with an abuse liability similar to morphine, interactions with alcohol and drugs of abuse, the use of meperidine in many conditions (head injury, increased intracranial pressure, asthma, ambulatory patients, pregnancy, Labor and Delivery, Mursing mothers), precautions in using meperidine, tolerance and physical dependence.
This article also has informations for patients/caregivers which should be given this warning informations when receive Demerol® tablets including the most frequently adverse reactions of the Demerol®, dosage and administration for pain reliever, the symptoms and treatment of meperidine overdosage, meperidine safety-handling, and how meperidine supplied for oral use.
Complete article about Things You Should Know about Demerol® can be found here in the pdf filetype (source: products.sanofi-aventis.us).
