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Colon Cancer

Taking OsmoPrep for colonoscopy



One doctor prescribes taking 20 the 32 Osmoprep tablets and then waiting 12 hours to take the remaining 12. Another prescribes taking 15 at 3:00 and the remaining at 8:00 p.m. I read where your body needs the 12 hour interval.

Does it matter when you take them as long you take them all before the morning of the procedure? In other words, can I take 15 at 9:00 a.m. the day before and the remaining at 9:00 p.m.? Just trying to lighten the affect on my body.


It's not crucial about the timing - just the number of pills and taking them in evening and morning.

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Response by:

Gregory S Cooper, MD Gregory S Cooper, MD
Professor of Medicine
School of Medicine
Case Western Reserve University