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.
Bowel Prep for. Colonoscopy. For people who have diabetes. When you are getting ready for a colonoscopy, you must have only. clear liquids for at least 24 hours before your exam. If you have. diabetes, this means you need to be sure to take in enough. carbohydrates (carbs) from liquids you may not usually consume. Your.