Why Choose a SITZMARKS® Study? | SITZMARKS®
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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.

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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

Doctor and patient

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

A happy family

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

Doctor and patient
Doctor and patient

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:

  • Outlet obstruction

  • Hypomotility

  • Colonic inertia

  • Other bowel disorders

SITZMARKS for Kids

SITZMARKS® For Kids

We also offer a pediatric version, SITZMARKS for Kids, which is indicated for patients ages 2 and up with persistent pediatric constipation.

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 

Identify the Next Steps for Your Patient’s Treatment

Get the results you need to inform your diagnostic process for patients with chronic constipation. With SITZMARKS, you can investigate possible causes and lay the groundwork for further testing or treatment plan.

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Talking to Your Healthcare Provider

When discussing the SITZMARKS test, be prepared to share:

  • Specific constipation symptoms you are experiencing

  • How long you’ve had these symptoms 

  • Treatments you’ve already tried (supplements or over-the-counter medications)

  • Any medications you’re currently taking

  • Your typical diet and lifestyle and any recent changes

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