Digital health services lab

Evidence, built with care.

Benevolence Labs makes LactCheck, a free tool for breastfeeding medication evidence and mathematical modeling of infant drug exposure based on medication and feeding schedules.

Use LactCheck free Explore our projects

All LactCheck features are free. No subscription or payment required. Predictions are experimental estimates, not medical advice.

Our mission

Software should serve people, not exploit them.

We build tools that make medication-transfer evidence easier to find, understand, and discuss with a qualified clinician.

See how we work

Projects

Thoughtful tools for high-stakes questions.

We build focused services where better information can make a meaningful difference.

Live serviceFree to everyone

Benevolence Labs service

LactCheck

Can I keep breastfeeding while taking my medication?

Explore reviewed breastfeeding medication evidence and predictive infant exposure estimates using mathematical modeling of medication and feeding schedules. Predictions are experimental estimates and can be wrong. They are not medical advice. Discuss medication and feeding decisions with a qualified clinician.

Every LactCheck feature is free for families, clinicians, and researchers.

Use LactCheck free

Medication data gap

Information gaps make medication counseling harder.

9 in 10

women report taking some type of medicine during pregnancy; 7 in 10 report taking at least one prescription medicine.

<10%

of medicines approved since 1980 have enough data to determine pregnancy safety.

Up to 62%

of pregnant women in the reviewed studies were prescribed two or more medications during pregnancy.

LactCheck organizes reviewed lactation evidence and labels estimates when direct measurements are unavailable.

Research in progress

Planned service

Placental crossing predictor

Predicting drug transfer across the placenta.

A planned medication-transfer model for pregnancy, focused on estimating which drugs are likely to cross the placenta and where stronger clinical review is needed.

Pregnancy pharmacologyPlacental transferIn development

Our approach

Clarity is a feature.

Useful health software should make the evidence easier to understand, not harder to trust.

Traceable evidence

Source-linked thinking and transparent methodology keep the relevant evidence close at hand.

Evidence boundaries

We make uncertainty legible, with the relevant caveats where they matter.

Deliberate iteration

New methods, evidence, and feedback are reviewed in documented, versioned steps.

About Benevolence Labs

Evidence-based by design.

Benevolence Labs builds software tools grounded in peer-reviewed science and real-world data. We believe technology should illuminate the best available evidence — not obscure it behind black boxes or marketing copy.

Our directive

Build tools that serve people, not exploit them.

That means transparent methodology, continuous learning, and models that improve over time as new evidence emerges.

Governed research and iteration

We evaluate new methods, evidence, and user feedback through documented, versioned review. Improvements are introduced deliberately, so the product can evolve without obscuring how it works.

Currently focused on healthcare and medical research, where the stakes are highest and the need for evidence-based decision support is greatest.

Evidence, built with care.

Benevolence Labs makes LactCheck, a free tool for breastfeeding medication evidence and mathematical modeling of infant drug exposure based on medication and feeding schedules.

All LactCheck features are free. No subscription or payment required. Predictions are experimental estimates, not medical advice.