Illustration: a small pharmacy at night, its windows lit and the door ajar.

The two faces of a side effect

Was one medicine prescribed for the side effect of another?

Scan or type the medicines at home. Janus looks for prescribing-cascade patterns described in the literature and prepares a cited note for the doctor, in the doctor's language.

Try the demoHow it works

No sign-up. Three synthetic patients with invented product names.

Illustration: a clear glass head with two faces, filled with coloured capsules, on a white background.

A check of the medicines at home

A clear look at the medicines in your home.

Scan or type the medicines at home. Janus looks for prescribing-cascade patterns described in the literature and prepares a cited note for the doctor, in the doctor's language.

Try the demoHow it works

No sign-up. Three synthetic patients with invented product names.

Possible prescribing cascade

Amlodipine, then furosemide

  • 5 months apart
  • 4 sources

Demo · synthetic patient

65 published prescribing-cascade patterns (PIPC list, 2025)

Photos of the boxes stay on this device

How it works

  1. Scan the code on the box, photograph the label, or type the ingredient name. The label and the name work with a box from any country that prints the name in Latin letters.
  2. Janus compares your medicines with 65 published prescribing-cascade patterns and public reports of side effects.
  3. You get a note with sources for your doctor, in the doctor's language.

Regions and languages

Medicine boxes from: Türkiye, European Union, United States

Languages: English, Türkçe, Deutsch, Français, Español

What stays on this device

Photos of the boxes stay on this device. Janus has no account, does not store your medicine list and sends only the codes the check needs.

Privacy

At a glance

From the box to a note for the doctor.

Results on one screen, calm and clear.

Every finding comes with its sources; ratios with their range, and counts as reports, not people.

A note in your doctor's language.

With its sources and, if you choose, a QR code the doctor can use to answer.

65 published prescribing-cascade patterns (PIPC list, 2025)

Three regions, five languages.

Public medicine lists from Türkiye, France and Spain (EU) and the US.

English · Türkçe · Deutsch · Français · Español

  • TürkiyeTİTCK
  • European UnionBDPM · CIMA
  • United StatesopenFDA

Sources with a DOI are checked for retractions.

A retracted study is not used, and Janus tells you so.

DOIs checked against Crossrefincluding Retraction Watch data

How it works

  1. Scan the box

    Scan the code on the box, photograph the label, or type the ingredient name. The label and the name work with a box from any country that prints the name in Latin letters.

  2. Patterns are compared

    Janus compares your medicines with 65 published prescribing-cascade patterns and public reports of side effects.

  3. A note for the doctor

    You get a note with sources for your doctor, in the doctor's language.

What stays on this device

Photos of the boxes stay on this device. Janus has no account, does not store your medicine list and sends only the codes the check needs.

Privacy