Sometimes, however a lot of improvements have been made to colonoscopy prep over the years.

There are FDA-approved pills/tablets, drinks, and enemas for colonoscopy prep. Your doctor will likely have a preferred method of prep (and accompanying instructions). But, your doctor also has several options you can choose from.

Some options are over-the-counter, others require prescriptions. Some taste better than others. Start a conversation with your doctor about the best prep option for you.