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.
One day prior to surgery. Your bowel prep begins the day before your surgery. You can have solid foods the day before, but once youâve started the bowel prep you can only have clear liquids. We also recommend that if you do eat solid foods before your prep that you eat lightly.