INRstar is a clinical decision support system from inVita intelligence, designed to support safe, effective anticoagulation management. Trusted by the NHS since 1997, the platform is used by 2,200 services and supports more than 155,000 patients across the UK, Northern Ireland and the Republic of Ireland. It serves GP practices, hospitals, community pharmacies, prisons, private clinics and patients managing their care at home.

The INRstar suite supports the anticoagulation pathway for patients taking warfarin or direct oral anticoagulants. INRstar provides tools for patient management, clinical review and intelligent dosing. INRstar Analytics gives commissioners and clinical leads population-level reporting, benchmarking and visibility across multiple locations. INRstar Engage connects patients with their care teams through an app that supports self-testing, DOAC management and digital dosing.

Alongside its software, the brand offers customer support, self-help resources and role-specific training. Its courses cover use of the INRstar system and broader clinical education, including cardiovascular webinars for primary care. INRstar is a UKCA- and CE-marked medical device registered with the MHRA.