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Centralized Pharmacy Anticoagulation Service (CPAS)

Clinic Hours

Monday to Friday, 8:30am to 5:30pm

Call Us

Phone: 713-442-6240
Fax: 713-442-2735

Centralized Pharmacy Anticoagulation Service (CPAS)

also referred to as “Coumadin Clinic” or “Warfarin Clinic”

Kelsey-Seybold Clinic provides anticoagulation services to monitor and assist patients who take a medication called warfarin (also known as Coumadin® or Jantoven). Warfarin is an anticoagulant, or “blood thinner,” that is used to help treat or prevent conditions such as, but not limited to:

  • Atrial Fibrillation (abnormal heart rhythm)
  • Clotting disorders
  • Clot in the leg (deep vein thrombosis or DVT)
  • Clot in the lungs (pulmonary embolism or PE)
  • Mechanical heart valves
  • Previous stroke or heart attack

The Centralized Pharmacy Anticoagulation Service (CPAS) is also referred to as “Coumadin Clinic” or “Warfarin Clinic” and is comprised of anticoagulation specialized clinical pharmacists and staff who work closely with your doctors to help manage your warfarin therapy. They assist with lab monitoring, warfarin education, drug interactions, warfarin dose adjustments, and warfarin refills. Patients who are on warfarin must have routine labs to ensure their warfarin dose is safe and effective.

When your doctor enrolls you into the anticoagulation clinic, you can expect the following:

  • A CPAS team member will call to schedule a phone appointment with a clinical pharmacist.
  • They will review your medical history as it relates to warfarin, review your medications to ensure your chart is updated, provide warfarin education, and give instructions on your warfarin dose & next International Normalized Ratio (INR) lab date.
  • Once you complete your INR labs, you can expect a call from CPAS to review your INR results within 24 to 72 hours and provide adjustments to your warfarin if needed.
  • You will receive a call or text reminder 2 business days before you are due for your INR labs. You will also receive additional calls if you are overdue for your INR.

If you have any questions regarding your warfarin therapy, please do not hesitate to reach out to one of the CPAS Clinical Pharmacists.

CPAS Patient Enrollment Video

Video Time Stamps

  • 0:00 - Welcome to Coumadin Clinic
  • 1:29 - How Warfarin Works
  • 2:23 - Warfarin Indications
  • 3:16 - Warfarin & Lab Monitoring (INR)
  • 4:47 - INR follow-up
  • 5:50 - How to take your Warfarin
  • 7:06 - Warfarin & Diet
  • 9:02 - Warfarin & Side Effects
  • 9:34 - When to Seek Medical Help
  • 11:15 - When to Notify CPAS
  • 12:41 - Thank you for watching

Patient Materials Download

Patient Agreement Form

Warfarin Education Booklet

Quick Reference – When to Call the Warfarin Clinic

Quick Reference – About Warfarin

Quick Reference – Foods that affect INR

Quick Reference – Over-the-Counter Medication Guide

Tablet Colors

Test Your Knowledge

CPAS Release of Information Form

Acelis Vitamin K Food Category