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Methodology

How we grade evidence, how to read drug cards, how supplements differ from medicines.

Medicines Supplements Cosmetics Methodology

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Evigrade is an evidence-based medicine reference. Drugs, calculators, and interactions evaluated against international clinical guidelines. The project is an independent encyclopedia with no direct commercial ties to pharmaceutical manufacturers.

Sources used by the project: Cochrane, UpToDate, NICE, BMJ Best Practice, WHO, FDA, EMA, ESC, ADA, EASD, ACC/AHA, RCOG, EASL, AASLD, IDSA, GINA, GOLD, NCCN, ESMO, AAP, AAN, APA.

Editorial stance: Evidence tier ratings are editorial opinions based on public sources, not statements of fact. Methodology and editorial principles.

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