Medication Safety & Prescribing
Y

YouScript

YouScript computes the cumulative effect of a patient's whole medication regimen together with their pharmacogenomic results, rather than checking drug pairs one at a time. Its founder, Kristine Ashcraft, makes the argument directly: American practice has relied on binary interaction alerting for decades, and binary alerting breaks down once a patient is on five or more medications, which now describes tens of millions of people.

The patented engine models drug to drug interactions, drug to gene interactions and phenoconversion, where one drug alters how a patient metabolises another and effectively changes their genotype in practice, then returns severity coded guidance across four levels from change to no change alongside safer alternatives within the same drug class or indication. It draws on more than 19,000 high evidence references covering over 2,000 medications and integrates with Epic, Cerner, Allscripts and Telus Health as well as through standalone applications and APIs.

The product was incubated for over a decade inside Genelex, a pharmacogenetic testing laboratory in Seattle, established as YouScript in 2016, acquired by Invitae in 2020, and sold to Aranscia in an all cash transaction announced in November 2023. It holds something rare in this category: a prospective randomised controlled trial with a rehospitalisation endpoint. It also markets itself as laboratory agnostic while having been owned by a testing business for essentially its entire existence.

AI Health Index verifiedAugust 2, 2026
Compare YouScript with other vendors
Founded
2016
Headquarters
Seattle, Washington, United States
Website
youscript.com/
Categories
medication-safety-and-prescribing, clinical-decision-support, diagnostics-and-genomics
Assessment

Capability Axes

An AI Health Index grade measures what a buyer can verify from public sources on the date shown. It is not a rating of how good the product is. A vendor can build an excellent system and grade low on an axis because it publishes nothing an outsider can check. How grades read

AI Capability
CC on AI CentralityArtificial intelligence is a feature layer on a product whose value stands without it.
Vendor Published

The engine is a patented computational model over a curated evidence base rather than a learned system, and no machine learning claim was located anywhere in the company's material. What it computes is genuinely more than a lookup: cumulative interactions across a whole regimen, drug to gene effects, and phenoconversion, where one drug alters the metabolic capacity a patient's genotype would otherwise predict.

That last mechanism is the reason a pairwise interaction table gives the wrong answer for a polypharmacy patient, and modelling it requires pharmacological computation rather than a database join. The asset underneath is nonetheless the curated corpus of more than 19,000 references across 2,000 medications, which places this squarely in the moat is the dataset pattern. Graded C on the mechanism, with the accuracy of the company's own description credited: it calls this an evidence based patented algorithm and does not reach for an artificial intelligence label.

BB on Autonomy and Oversight ModelThe oversight structure is described and one part is missing, commonly the threshold at which the system stops or what happens after it is wrong.
Vendor Published

Output reaches a prescriber or a dispensing pharmacist who decides, and the product never touches an order. One design choice is worth more than the workflow position: guidance is severity coded across four levels, change, consider, monitor and no change, so the system grades the strength of its own recommendation instead of firing an undifferentiated alert.

That is a direct structural answer to the override problem that defines this category, since a clinician who can see which alerts the system itself considers actionable has a basis for triage that binary alerting denies them. The product also surfaces alternative medications within the same class or indication rather than only flagging a problem, which makes the recommendation actionable rather than obstructive.

Held at B because no acceptance rate, override rate or alert burden figure is published, and because the four level scale itself has no published validation showing that the levels correspond to real differences in risk.

CC on Model and Technology TransparencyThe architecture is described in general terms with nothing identified. Proprietary is asserted rather than explained.
Vendor Published

Two partial transparency routes exist and neither substitutes for published validation. The algorithm is patented, and patents are public documents, so a determined reader has a route to the method that most vendors in this category do not offer even in principle.

And the product is designed to explain itself at the point of care, with the company stating that it is the only software providing a biologic basis for why an interaction occurs rather than asserting that one does, which is the practical form of letting a clinician check the reasoning.

Against that, retrieval located no description of how cumulative risk is computed across a regimen, no thresholds separating the four severity levels, no calibration data and no validation of the phenoconversion predictions specifically, which is the most technically ambitious thing the engine claims to do and the hardest for an outside party to assess.

CC on Model Supply Chain DisclosureThe architecture is described and no model provider is named. Naming a hosting provider alone does not lift a record out of this band. Record the host in the note, because it matters for residency and breach scope, and grade on the model layer, which is the question this axis is named for.
Vendor Published

One architectural choice materially narrows what enters the chain and it should be credited precisely. The platform is laboratory agnostic, ingesting an interpreted pharmacogenomic result from any laboratory alongside a medication list, rather than receiving raw sequence data.

That is a smaller and less regenerative footprint than holding sequence, because an interpreted result for a defined gene panel supports far less onward inference than the underlying data would, and the interaction check is a point in time query rather than continuous population monitoring. Both facts bound the chain by design rather than by policy.

What is absent is everything about who else is in it: no model or provider named, no hosting arrangement, no sub processor list, no retention schedule, and no statement of whether genotype data is retained after an interaction check completes. The content type raises questions ordinary protected health information does not, and nothing published addresses them.

A pharmacogenomic result is a genetic finding that does not change over a lifetime, cannot be revoked once disclosed, and carries implications for biological relatives who consented to nothing, and genetic information attracts protections beyond the ordinary health privacy rule in several jurisdictions. Ask what is retained after a check, whether genotype persists, and what additional handling applies to genetic results.

BB on Clinical and Operational EvidenceNamed deployments with dated outcome figures and enough method to test them, or published research short of independent validation.
Third Party Estimated

This vendor holds the only prospective randomised controlled trial located in this category. Elliott and colleagues, publishing in PLOS One in February 2017, randomised polypharmacy home health patients to pharmacogenetic profiling reviewed through this tool against usual pharmacist guided medication management.

Rehospitalisations per patient were 0.25 against 0.38 at 30 days and 0.33 against 0.70 at 60 days, and emergency department visits were 0.25 against 0.40 at 30 days and 0.39 against 0.66 at 60 days. The honest reading requires both timepoints: neither 30 day result reached significance, at P equals 0.21 and 0.16, while both 60 day results did, at P equals 0.007 and 0.045. The paper published the null results alongside the positive ones, which is the standard this index looks for.

A separate University of Utah led study in the Journal of Medical Economics reported a 71 percent reduction in emergency department visits, a 39 percent reduction in admissions and 1,132 dollars in estimated savings over four months, and that figure is the one company material leads with.

Held at B rather than higher because the trial was a pilot with a control arm of 53 patients, because employees of the vendor's then parent laboratory are co authors on it, and because the laboratory supported the second study with materials and genotyping.

CC on AI Safety and PHI StewardshipGeneral assurances of privacy and security that do not answer the questions artificial intelligence raises: what is retained, what reaches a model, and what happens to it there.
Vendor Published

The data handled here is a category apart. A pharmacogenomic result is a genetic finding that does not change over a lifetime, cannot be revoked once disclosed, and carries implications for a patient's biological relatives who never consented to anything. The platform ingests those results from any laboratory alongside a full medication list.

Retrieval located no retention schedule, no de identification statement, no description of whether genotype data is retained after an interaction check completes, and no discussion of the additional protections that genetic information attracts beyond ordinary protected health information.

Graded C rather than lower because the laboratory agnostic architecture means the vendor receives an interpreted result rather than raw sequence data, which is a materially smaller footprint, and because the interaction check is a point in time query rather than continuous population monitoring.

Regulatory and Compliance
DD on HIPAA and BAA PostureNo statement of status and no privacy document that reaches the product.
Vendor Published

Two retrieval passes across the company site, its news pages and the parent group's material surfaced no HIPAA statement, no business associate agreement terms, no execution path, no subprocessor list and no compliance page. The grade describes published posture rather than contractual reality, since integrations with Epic, Cerner, Allscripts and Telus Health, and deployments in home health and long term care, all require executed agreements.

The absence is more consequential for this vendor than for most in the lane because the data involved includes genetic results, which attract protections beyond the ordinary privacy rule in several United States jurisdictions and under separate legislation again in Canada, where the Telus Health integration operates.

DD on Security Certifications and Trust CenterControls are asserted with nothing independent behind them, or nothing is published. Read the note before concluding anything: this is the grade most often corrected on a second pass, because assurance material frequently sits on a parent domain or inside an old announcement rather than on the product pages.
Vendor Published

Retrieval located no service organisation controls report, no HITRUST certification, no ISO 27001, no trust centre, no penetration testing cadence and no vulnerability disclosure policy for this product or for its parent group. The gap is notable given the ownership history, since the platform has passed through two publicly traded or venture backed genetics organisations that would each have maintained security programmes, and given that four named electronic health record integrations imply that partner security reviews were passed repeatedly. None of that is readable by a prospective buyer. For a platform holding genetic results, publishing an attestation would be the highest value single change available to this record.

CC on FDA and Regulatory StatusNo device claim is made and the product is scoped accordingly. Most administrative and operational products sit here and are not penalised for it, because this axis grades the appropriateness of the positioning rather than possession of a clearance.
Vendor Published

This vendor states its regulatory position explicitly where most of the category leaves it to inference, publishing that the software has not been reviewed or approved by the Food and Drug Administration and cannot be used to diagnose or treat any disease or health condition. That directness earns credit.

The tension a buyer should weigh is that the product does more than the disclaimer implies: it interprets a genetic result against a specific medication and recommends alternative drugs, which sits closer to a therapeutic proposal than to a reference lookup, and pharmacogenomic interpretation has been an area of regulatory attention distinct from the underlying laboratory test.

Establish which claims the vendor considers covered by its disclaimer and which by the laboratory's own regulatory basis, because the interpretation layer and the test are regulated through different routes and a buyer contracts for both.

DD on AI Governance and Bias DisclosureNothing published on how model behaviour is governed or tested. Multilingual operation with no subgroup performance sits here when the vendor markets recognition quality as a strength, because a caller the system failed to understand leaves no complaint and no record.
Vendor Published

The exposure here is more technically specific than for any other vendor in this lane, and it is intrinsic to pharmacogenomics rather than a criticism of this company's conduct. The frequency of metabolising enzyme variants differs substantially between ancestral populations, and the reference data underpinning drug to gene guidance has historically been derived disproportionately from people of European ancestry, so the completeness of any interaction engine's coverage varies by whose genome it is reading.

A patient whose relevant variants are poorly characterised in the source literature receives a confidently formatted answer built on thinner evidence, and nothing in the interface distinguishes those cases. Retrieval located no statement of which populations the evidence base covers well, no performance reporting by ancestry, age or sex, and no bias assessment. A vendor whose entire proposition is genotype informed prescribing is the right party to publish that coverage map.

CC on AI Liability and RecourseMechanisms exist that let someone challenge an output, such as audit trails, source traceability or review before commit, with nothing standing behind the output and no route for the harmed party.
Vendor Published

Two routes to the reasoning exist and one of them is delivered where it is useful. The product is designed to explain itself at the point of care, providing a biologic basis for why an interaction occurs rather than asserting that one does, which is the practical form of letting a clinician check the logic: a pharmacist told that two drugs compete for the same metabolic pathway can evaluate that claim against what they know about the patient, where a bare severity label leaves them only the option of accepting or ignoring it.

The algorithm is also patented, and a patent is a public enabling document, so a determined reader has a route to the method that most vendors in this category do not offer even in principle. Held at C because the most ambitious claim is the least supported.

No description exists of how cumulative risk is computed across a whole regimen, which is the distinctive thing this product does since single interactions are widely available elsewhere, no thresholds separate the four severity levels, no calibration data is published, and the phenoconversion predictions have no published validation at all.

Phenoconversion, where a drug effectively changes a patient's metabolic phenotype away from what their genotype predicts, is the hardest inference in this domain and the one an outside party can least easily assess. No warranty, indemnity or remediation commitment was located. Ask for the severity thresholds, the cumulative risk method, and validation of the phenoconversion predictions specifically.

Integration and Deployment
BB on EHR and Interoperability DepthNamed systems with read access or one directional writing, or standards support with named deployments behind it.
Vendor Published

Integration breadth is real and named across four systems: Epic, Cerner, Allscripts and Telus Health, the last of which extends reach into Canadian practice and is unusual in this index. Delivery is offered three ways, embedded in the electronic health record, as a standalone application, and through an application programming interface, which lets an organisation adopt the analytics without an integration project and matters for the long term care and home health settings where the evidence was generated and where record systems are often lighter.

Held at B because no marketplace certification, no FHIR conformance statement and no public API documentation were located, and because the specific mechanism by which a pharmacogenomic result from an arbitrary laboratory reaches the engine, which is the crux of the laboratory agnostic claim, is not described publicly.

CC on Deployment Model and Data ResidencyA single hosted option with location implied rather than committed.
Vendor Published

Delivery is cloud based with embedded, standalone and programmatic access described, and operations span the United States and Canada through the Telus Health relationship. Retrieval located no named hosting provider, no cloud region, no data residency commitment and no statement about whether Canadian patient data remains in Canada, which is a live question rather than a theoretical one given provincial health privacy legislation and the sensitivity of the genetic results involved.

The ownership history compounds it, since the platform has moved between three corporate parents in seven years and public material does not describe whether the underlying infrastructure moved with it or was rebuilt.

Commercial
DD on Commercial TransparencyNothing a buyer can establish before a sales conversation. A published pricing claim contradicted by evidence also grades here.
Vendor Published

No price, unit, pricing basis, contract shape or implementation fee was located. The disclosure that matters more here is structural and it concerns independence rather than cost. The product's central commercial claim is that it is laboratory agnostic, meaning it will interpret a pharmacogenomic result from any testing provider, and that claim is what distinguishes it from decision support bundled with a particular laboratory's panel.

Yet the platform was incubated inside a pharmacogenetic testing laboratory, then owned by a genetics testing company that acquired that laboratory at the same time, and is now owned by a group whose portfolio includes a clinical testing laboratory. A tool that advises whether and how to act on a genetic test has been owned by parties selling genetic tests throughout its existence. That is commercially ordinary and it is exactly the kind of alignment a buyer should be able to read about rather than reconstruct, and no statement addressing it was located.

BB on Setting and Specialty CoverageCoverage is named with validation behind part of it.
Vendor Published

Coverage follows the medication list rather than a specialty, spanning more than 2,000 drugs, which means the tool applies wherever polypharmacy occurs rather than to a defined clinical service. Settings evidenced in practice are the ones where polypharmacy concentrates and where the published research was conducted: home health, where the randomised trial ran, long term care and programmes of all inclusive care for the elderly through a pharmacy partnership, and ambulatory practice through electronic health record integration.

Geographic reach covers the United States and Canada. Held at B because acute inpatient deployment is not evidenced, paediatric use is not addressed despite pharmacogenomics being clinically consequential in children, and the named customer base is thinner than a product with two decades of history would suggest.

Comparisons

Compared With

Each comparison carries a written verdict, the buyer conditions that favor each vendor, and a graded side by side. Pairs that cross a category boundary are grouped separately, and their verdicts state where the boundary sits rather than manufacturing a head to head.

Commercial

Pricing

Vendor-published figures are labeled as such. Figures labeled “Estimated” are derived from third-party sources and have not been confirmed by the vendor.

Entry Price Pricing Basis BAA Tier Implementation Source
Undisclosed
Not published Not published Not published Vendor Published

No price, unit, pricing basis, contract shape or implementation fee was located across the company site, its news pages or the parent group's material. Two questions matter more than the number. First, what is being bought: the platform is sold as software, as an embedded integration and through an application programming interface, and it is separately packaged into programme support engagements, so establish whether the charge attaches to the interaction check, the patient, the seat or the programme.

Second, and more important, establish the relationship between the software fee and the testing fee. The product's differentiating claim is that it is laboratory agnostic, yet it has been owned throughout its existence by organisations that sell pharmacogenomic testing, most recently a group whose portfolio includes a clinical laboratory. A buyer should ask directly whether pricing, contracting or support differs according to which laboratory produced the genetic result, and should get the answer in writing.