Opioids, which are commonly known as narcotics, are a type of medication. They generally include prescription medications or pain relievers such as tramadol, fentanyl, oxycodone and hydrocodone. Opioids also include the illicit substance heroin. Some opioids are derived from the opium poppy, whereas others are manufactured synthetically. Your doctor may prescribe opioids to help you cope with the pain, which most people experience after a surgery or injury. What are the possible side-effects of opioids? Some of the possible side-effects of opioids include constipation, mental fog, drowsiness and nausea. It can cause shortness of breath sometimes, and this might lead…