Terms of Service

1. Acceptance of Terms

By accessing or using Praxio services, including Retroact, you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use our services.

2. Description of Service

Praxio provides software tools for healthcare professionals, including Retroact for anticoagulation follow-up. Our services are designed to assist with clinical workflows but do not replace professional medical judgment.

3. User Accounts

You are responsible for:

• Maintaining the confidentiality of your account credentials
• All activities that occur under your account
• Ensuring all information you provide is accurate and up-to-date
• Notifying us immediately of any unauthorized use

4. Subscription and Payment

Retroact is free for accounts following 2 or fewer active patients. Above that, pricing is set by the number of active patients you follow, according to the published brackets on our pricing page. Paid subscriptions are billed monthly. You may cancel at any time, effective at the end of the current billing period. The addition of a patient is not restricted by reference to your plan; the invoice moves to the corresponding bracket instead.

5. Data Ownership

You retain all rights to the data you enter into our services. We do not claim ownership of your content. You grant us a limited license to use your data solely to provide our services.

6. Limitation of Liability

Our services are provided "as is" without warranties of any kind. We are not liable for any indirect, incidental, or consequential damages arising from your use of our services, including any clinical outcome, dosing decision or patient harm arising from your use of, or reliance on, the reference limits described in section 7.

Nothing in these terms excludes or limits any liability that cannot lawfully be excluded or limited, including liability that applicable consumer-protection or professional-liability law reserves. Where a limitation in these terms is unenforceable in your jurisdiction, it applies to the fullest extent that jurisdiction permits and the remainder of these terms continues in force.

7. Clinical Responsibility

7.1 Function and limitations of the software

Retroact is a record-keeping and reference tool for anticoagulation follow-up. It records the INR results, doses and schedules that you enter, and it checks what you enter against a set of reference limits. It does not calculate, recommend or suggest a dose, and it does not interpret a result for a particular patient. Every dosing decision recorded in Retroact is a decision you have already made.

7.2 Protocols are advisory

Retroact allows an account to select a protocol, which supplies the reference limits the software applies — dose ceilings, dose increments, INR alert thresholds and a maximum week-over-week adjustment. These limits are advisory reference values only. They are not clinical guidance, not a treatment recommendation, and not a statement about what is appropriate for any individual patient.

The limits in a protocol come from three different kinds of origin, and we record which applies to each value:

• values taken from a published clinical guideline, cited by document;
• values taken from marketing authorisation or national formulary information, such as the tablet strengths available in a given country; and
• values set by us, which no external source states. The milligram dose ceilings are of this kind. They exist to catch obvious data-entry error — a dose typed with an extra digit — and they are not a clinical opinion about a maximum safe dose.

Where we have not sourced guidance for your country, Retroact applies a baseline protocol. A baseline cites no clinical authority of any kind. It is not that country's guidance and must not be relied on as such.

7.3 Reference limits do not override the clinician

Where an entry falls outside a reference limit, Retroact will warn you or ask you to record a justification before saving. You may proceed in every case. The software will not prevent you from recording clinically indicated care, and a recorded justification is a note of your decision, not our approval of it. Therapeutic target ranges are set by you, per patient, and Retroact never assumes one.

7.4 Responsibilities of the user

You are the licensed professional. You are solely and entirely responsible for:

• every dosing, monitoring and treatment decision for every patient in your care;
• verifying that the protocol selected in your account corresponds to the guidance actually in force in your jurisdiction and to your own professional standards, before relying on it;
• verifying the accuracy of everything entered into or produced by Retroact, including printed dosing calendars and prescriptions, before acting on it or giving it to a patient;
• determining the therapeutic target range for each patient; and
• complying with the professional, regulatory and record-keeping obligations that apply to you.

7.5 No warranty of clinical currency

Clinical guidance changes, and published documents are revised, superseded and withdrawn. We make no warranty that a protocol reflects the current edition of any guideline, that it is complete, or that it is appropriate for your patients, your indication mix or your jurisdiction. We publish the source behind each value so that you can verify it yourself, and you are responsible for doing so.

7.6 No professional relationship

Providing this software creates no clinical, professional or advisory relationship between us and you or your patients. We do not practise pharmacy or medicine, we do not supervise your practice, and nothing in Retroact constitutes medical advice.

8. Contact

For questions about these Terms of Service, please contact us:

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