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At last, an easier way to prepare for a colonoscopy

The prep remains perhaps the biggest impediment to screening. That’s why the approval last year of a pill-based option is welcome news.

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July 31, 2022 at 7:22 a.m. EDT
A microscope image shows human colon cancer cells with the nuclei stained red. (AP)

Decades ago, to prepare for a colonoscopy, patients first had to clean out their colons using laxatives such as castor oil or magnesium citrate, sometimes over several days. It wasn’t pleasant.

Things improved in 1984 with the introduction of a powder-based solution that patients could drink the day before a colonoscopy. The colon-cleansing drink, called GoLYTELY, tastes nasty but “turned 3½ days of torture into 3½ hours of torture,” says gastroenterologist Jack Di Palma, a professor of internal medicine at the University of South Alabama College of Medicine.