Medications and colon blood supply anatomy vector showing major arteries of the large intestine before colonoscopy.

Screening

Which Medications to Stop Before a Colonoscopy—and What to Keep

Medications to stop before a colonoscopy are a short list—blood thinners, iron, some diabetes drugs—while most you keep. Here's the timing to confirm.

Dr. Calvin R. Beauregard, MD — Family & Preventive Medicine, Dr. Alicia M. Thornton, MD, MPH — Public Health & Epidemiology and Dr. Nathaniel G. Forsythe, MD, PhD — Translational Medicine & Research
June 15, 2026

Colonoscopy Prep Options — Full human digestive system diagram showing the esophagus, stomach, small intestine, and large intestine.

Screening

Choosing Between SUTAB Pills and Liquid Colonoscopy Prep

A pill colonoscopy prep exists: SUTAB's 24 tablets clean about as well as liquid in trials but cost more and aren't always covered.

Colonoscopy Prep Tips large intestine anatomy vector illustration showing cecum, colon, rectum, and sigmoid colon

Screening

Know What Gets You Through Colonoscopy Prep

Colonoscopy prep is the part everyone dreads — but it's fixable. Chill the solution, finish the second dose on time, and know when your colon is ready.

What to eat before a colonoscopy: full digestive system anatomy showing stomach, intestines, and colon in a labeled medical illustration.

Screening

What to Eat Before a Colonoscopy to Prep the Right Way

What to eat before a colonoscopy comes down to two phases—low-fiber foods for several days, then clear liquids—and a few drinks to skip entirely.

Prepare for a Colonoscopy: digestive system anatomy showing the large intestine, rectum, and anus

Screening

How to Prepare for a Colonoscopy, Start to Finish

Preparing for a colonoscopy is mostly about timing: a clear-liquid day, split-dose prep, and a ride you arrange ahead. Here's the full day-by-day plan.

colonoscopy procedure diagram showing scope path through the colon

Screening

Colonoscopy: Prep, Cost, Results & Which Test You Need

By the end of this guide you'll know which colorectal screening test fits your situation, exactly how to prepare for a colonoscopy, and what your results actually mean. You'll also understand what it should cost—and how to avoid a surprise bill on a screening that's supposed to be free.