INRstar is our award winning anticoagulation software, helping care teams to manage patients on both traditional oral anticoagulants and direct oral anticoagulants (DOAC/ NOACs) safely and effectively.

We understand that improving patient outcomes and safety, whilst ensuring your service is cost and time effective can be challenging; which is why we designed INRstar to give you fully compliant, easy anticoagulation management at the touch of a button.

With 81.2% of patients managed in INRstar having a TTR (Time in Therapeutic Range) of greater than 65%; however you deliver your service and whatever your size, we can support you to improve patient outcomes quickly and cost-effectively.

  • 81%

    of patients with a TTR > 65%
  • 3.8m

    warfarin measurements entered into INRstar each year
  • 300,000+

    patients being managed on INRstar
  • medicines management audits show improvements in quality of prescribing

Used by all types of service providers from small GP practices, pharmacies and out-of-hours services to hospitals with many thousands of patients

Allows you to focus on patients, not IT

  • Quick and easy to set up
  • Centrally hosted so no local hosting, maintenance or manual updates
  • All data stored (and backed up) on secure remote servers
  • Regular updates ensure that all users are kept up-to-date with latest software and service developments, including new anticoagulation drugs and associated guidelines
  • Provides a networked solution that can be deployed right across a Clinical Commissioning Group or Local Health Board area

Interfaces to all leading clinical systems

  • The only anticoagulation management tool to interface to all leading clinical systems (EMIS, TPP SystmOne and INPS Vision)
  • Add new patients to INRstar, pulling the demographic details automatically from the clinical system
  • Non-testing locations can access their registered patients’ records via a View Only Licence


  • Full compliance with the Medical Device Directive (93/42/EEC), Caldicott 2 and the latest NICE guidelines
  • Uses published induction and maintenance algorithms for consistent dosing and review period suggestions
  • Follows the latest clinical guidelines on anticoagulation best practice
  • Contains built in warnings and alerts
  • Facilitates clinical audit to monitor the effectiveness and safety of your service
  • Manages all your anticoagulation patients in one place; giving you a crucial bird’s eye view of your whole patient population
  • Clinical Leads can implement centrally managed clinical protocols to ensure consistency across multiple providers

INRstar is not available in the USA.

Use INRstar to manage your DOAC and warfarin patients

  • Keep all your patients in one place
  • Ensure patients are followed up when necessary
  • Record NOAC patient initiations and follow-ups