Free health reference for everyone
14 reference tools, free and with no sign-in: what to do in an emergency, how urgent a symptom is, what a medicine is for, when a vaccine is due, and the shorthand on your discharge summary. Written to help you understand and to help you ask better questions — never to replace the doctor who answers them.
This is general health information for education, not medical advice, and not a diagnosis. It cannot see you, your history, your allergies or your medicines. Never use it to start, stop or change a treatment, and never let it delay you seeking care. If you are worried about symptoms, speak to a qualified doctor; if they are severe or sudden, seek emergency help.
Emergency Warning Signs
When something cannot wait for an appointment.
OpenFirst-Aid Guide
What to do in the first few minutes, before help arrives.
OpenSymptom Guidance
How urgent is this, and who should I see?
OpenMedical Information Library
Common conditions — what they are, how they are found, how they are treated.
OpenDrug Information
What a medicine is for, and what to watch for while taking it.
OpenDrug Interaction Checker
Check two medicines against a curated list of well-known interactions.
OpenBlood Pressure Classification
Enter a reading and see the category under both major guidelines.
OpenDiabetes Care
Living with diabetes — targets, checks and the things that go wrong.
OpenVaccination Schedule
What is due, and when — for children and adults.
OpenPregnancy Week by Week
What is happening, and what to watch for, trimester by trimester.
OpenChild Growth & Development
Milestones, growth monitoring, and when to ask.
OpenMedical Abbreviation Dictionary
The shorthand on your prescription and discharge summary, decoded.
OpenMedical Terminology Dictionary
The word parts that let you decode a term you have never seen.
OpenDrug Comparison
For a condition, a symptom or a clinical feature — what the medicine options are and how they differ. No doses, no rankings.
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