A second check you can run yourself. Tell us what to change
Caydra LLC — assistive interaction support for clinicians
Tell us what to change
U.S. medication coverage.14,000+ U.S. names (RxNorm). Color scores where evidence exists; Gray (Unknown) means not yet scored — not that it is safe. Clinician decides.
Interaction support only — not diagnosis.Assistive CDS for licensed clinicians. Does not diagnose or replace the treating clinician. Not for unsupervised clinical use.

A second check you can run yourself.

Many hospital systems already flag interactions inside the patient chart. Caydra is a standalone assistant for licensed clinicians: enter the list, see colors and source notes when available, then keep your own judgment. No hospital IT ticket. Clinician beta opened August 25, 2026 — United States and Canada.

Request access Sign in — use Caydra One month free — clinicians only
More than 1.5 million

U.S. emergency visits each year from adverse drug events (ADEs)

Almost 500,000

of those visits lead to hospitalization

Source: CDC, FastStats: Medication Safety Data, April 17, 2024. cdc.gov/medication-safety/data-research/facts-stats. These are national figures, not Caydra results. Caydra does not claim to reduce these national figures. CDC defines an ADE as harm from a medicine (allergic reaction, side effect, overmedication, or medication error). Caydra assists licensed clinicians. It does not replace your judgment.

Critical Major Moderate Low Unknown

Caydra’s drug name list is built from RxNorm (U.S. National Library of Medicine): 14,000+ U.S. medication names clinicians can search. Source: NIH RxNorm. This describes our name list, not a claim that every drug pair has been scored. Methods and citations: Sources.

Built for the desk, not the install project

Independent and small-clinic clinicians in the United States and Canada can request the beta this month. Minutes, not months. You choose the list. You see why a color was assigned.

Colors so you can compare, not drown

Red is not mixed with mild noise. Gray means not in our evidence set yet — missing is not “safe.” If a color looks wrong, tell us. We review feedback and update when we can.

Caydra is assistive clinical decision support for licensed clinicians. It does not diagnose, treat, or prescribe. It is not a substitute for your professional judgment. It is not for patient self-treatment. It is not an FDA-cleared medical device and is not marketed as one. You remain responsible for clinical decisions. Caydra LLC is not your treating clinician.