All your anticoagulation
in one place
Market-leading clinical decision support software for complete anticoagulation management across GP practices, hospitals, pharmacies, prisons, and private clinics throughout the UK & NI and Republic of Ireland.
The gold standard in anticoagulation management
INRstar provides complete anticoagulation support for the induction, dosing, review and connected self-care of patients on both warfarin and direct oral anticoagulant drugs (DOACs/NOACs).
Trusted by the NHS for over 25 years, INRstar enables the right decisions to be made at the right time based on accurate, fast and up-to-date information. Our system helps you make anticoagulation services safer, more effective and cost efficient whilst supporting you to improve clinical quality and demonstrate better outcomes.
Three products.
One complete solution.
INRstar brings together clinical decision support, population analytics, and patient engagement, covering every part of your anticoagulation service.
INRstar
Intelligent dosing and management support for warfarin and DOAC patients, used by 2,200 NHS services across the UK and Ireland.
INRstar Analytics
Population-level reporting and benchmarking for commissioners and clinical leads, with real-time visibility across every location in your network.
INRstar Engage
A patient-facing app connecting patients to their care team, supporting self-testing, DOAC management and digital dosing from home.
Are you an existing customer?
If you are looking for assistance, our customer services team are here to help. We can answer any questions or book training. Alternatively, you can access our dedicated help website for comprehensive self-help guidance.
Webinar training, tailored to your role
INRstar training is delivered through webinars in a modular format, so your team can join sessions flexibly and progress at their own pace, with no need to complete the training in one sitting. Webinars come in introductory and refresher formats, and on completion participants receive a certificate showing the course type and level achieved, which counts towards CPD hours.
Clinical Level 1
For healthcare assistants, phlebotomists and pharmacy technicians — whether you're new to INRstar or refreshing your competence. The programme covers:
- INRstar core features and your role in the service
- Treatment plans and patient management
- Recording INR results and managing out-of-range readings
- Quality control processes
Clinical Levels 2 & 3
For registered nurses, prescribers, anticoagulation nurses, GPs and pharmacists building on Level 1 — whether progressing up or refreshing your competence. The programme covers:
- Warfarin and DOAC treatment plans and dosing algorithms
- Clinical reviews and managing complex INR readings
- Bridging anticoagulation
- Self-directed study with a revalidation reflection summary
Need help with INRstar products?
Our dedicated help site has comprehensive self-help information and answers to frequently asked questions. If additional support is needed, you can also contact our team using the details below.
Access INRstar help siteINRstar
Phone: +44 (0)1209 710999
General enquiries
INRstar engage
Phone: +44 (0)1209 721945
Opening hours
Monday to Friday, 9am–5pm
excluding bank holidays
Frequently asked questions
Quick answers to the questions we hear most often. Can't find what you're looking for? Get in touch with our customer services team.
Who is INRstar for?
INRstar is used by NHS GP practices, hospital anticoagulation clinics, community pharmacies and self-testing patients. It supports clinicians, nurses, commissioners and patients across the entire anticoagulation care pathway.
Is INRstar a regulated medical device?
Yes. INRstar is a UKCA and CE-marked medical device, registered with the MHRA. inVita intelligence is an ISO 13485 certified medical device manufacturer.
How many computers and users can use INRstar?
There is no cap or cost on the number of computers INRstar can be installed on, or the number of users accessing the system, so you can roll it out across your service without per-device or per-seat charges.
Can we manage user access and permissions?
Yes. User account permissions are managed at the discretion of each individual service, so access levels can be configured and updated as required to suit your operational needs.
Do we need our own servers, and where is patient data stored?
No internal server infrastructure is required. Patient data is securely hosted by inVita intelligence via the NHS Health and Social Care Network (HSCN), removing the need for local servers and reducing associated IT management and maintenance costs.
Is INRstar easy to use?
INRstar has an intuitive, user-friendly interface, supported by a comprehensive online help resource that includes FAQs and step-by-step guidance.
What support is included?
A dedicated support team is available by phone or email, included as part of the standard licence fee.
What does INRstar integrate with?
EMIS, TPP, Vision, NHS, Medicus, Secondary Care LIMS and EHR.