Drug, medicine and regulatory information does not remain equally reliable forever. New evidence is published, safety advice changes and laws are amended. PlusGBUK uses visible dates to help readers judge when a page was produced or reassessed.
Published, modified and reviewed dates
The publication date shows when an article first appeared. A modified date indicates a later substantive editorial update. A medical review date, where present, records when a qualified reviewer completed the stated clinical review. An evidence-check date may be used when the sources and factual claims were reassessed without requiring a full rewrite.
When we revisit content
Priority is given to pages where outdated information could materially affect a reader’s understanding of safety, treatment, interactions, emergency action, law or regulation. We may also update an article when a regulator issues new guidance, a significant body of evidence changes, a cited source is withdrawn or a recurring reader question shows that the explanation is unclear.
What a newer date does not guarantee
A recent date is not a substitute for good evidence. We do not change dates simply to make content appear fresh, and a minor typographical edit should not be presented as a substantive review.