Examples include heroin, hydrocodone, and hydromorphone. Fully synthetic opioids are not derived from an opiate but still bind the opioid receptor. Examples include fentanyl and methadone [2]. Opioids are often used medically for pain relief but are also used non-medically for their psychoactive and euphoric effects.
A clear liquid diet on the day before your colonoscopy helps clear out your intestines, as well as helping to maintain your hydration.
The day before a colonoscopy, most patients must switch to a clear liquid diet consisting of water, broth and other see-through liquids, according to the Harvard Medical School Family Health Guide. Gelatin and ice pops are usually acceptable foods to consume at this time as well.