ZOGENIX - HOME. Painkiller 10 times stronger than Vicodin worries addiction experts - HealthPop. Painkillers, specifically narcotics, can cause constipation.
"A lot of receptors for the narcotic class of drugs are in the digestive tract, so it tends to bring everything to a halt," says Dr. Thomas Park, a gastroenterologist with the University of Rochester Medical Center Park in New York. Hydrocodone. Hydrocodone is a semi-synthetic opioid derived from codeine.
Hydrocodone is used orally as a narcotic analgesic and antitussive (cough medicine), often in combination with paracetamol (acetaminophen) or ibuprofen.[1] Hydrocodone is prescribed predominantly in the United States. The International Narcotics Control Board reported 99% of the worldwide supply in 2007 was consumed in the United States.[2]