
Why Choose
SITZMARKS®?
A SITZMARKS® study is a cost-effective, non-invasive option for investigating colonic motility in patients with chronic constipation and otherwise negative GI evaluations. This colonic transit time test gives you diagnostic insights to identify potential physiological causes of a patient’s chronic constipation by detecting conditions such as colonic inertia, hypomotility, outlet obstruction, and other bowel disorders, and determine the next steps for your patient, whether that’s further testing or tailored treatment.

SITZMARKS Is …
SITZMARKS capsules have been in use for over three decades. It is a time-tested, reliable approach to evaluate colonic transit time.
Time-Tested

The SITZMARKS test consists of only 3 simple steps. First, you prescribe the test to your patient. Then, the patient takes a capsule on day 1. On day 5, the patient undergoes an X-ray to reveal the path of radiopaque rings in their colon.
Easy for You and Your Patients

Our colonic transit time test is non-invasive and minimally disruptive to your patient’s daily routine, while still allowing you to gain valuable insight to guide your diagnostic process.
Non-Invasive


Your First Step to Identify Physiological Causes
SITZMARKS provides a clear snapshot of your patient’s colonic transit, aiding you in identifying or ruling out physiological causes for chronic constipation, such as:
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Outlet obstruction
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Hypomotility
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Colonic inertia
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Other bowel disorders
Why Healthcare Professionals Choose Sitzmarks
“
The Sitzmarks Study is extremely important in the field of Gastroenterology especially when it comes down to figuring out the type and the cause of constipation. It's a non-invasive way to really determine if there's an outlet blockage, causing constipation or if the bowels are just really slow. I absolutely have loved how easy the study is to complete for patients and how easy it is to interpret for doctors. "
Dr. Patel MD, MPH
Gastroenterologist
“
We have been utilizing the Colon Transit Time Marker (Sitzmark capsule) for the past three months in the evaluation of colonic motility disorders. During this period, we have found the marker to be convenient for patients to ingest and straightforward to implement in clinical practice. We are very pleased that this test has been made available at our hospital, and we are grateful for the opportunity to incorporate it into our diagnostic practice with overall satisfaction.
AMARJARGAL Batdelger MD, MSc
Gastroenterologist , Department of Gastroenterology Endoscopy

Talking to Your Healthcare Provider
When discussing the SITZMARKS test, be prepared to share:
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Specific constipation symptoms you are experiencing
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How long you’ve had these symptoms
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Treatments you’ve already tried (supplements or over-the-counter medications)
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Any medications you’re currently taking
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Your typical diet and lifestyle and any recent changes