Metformin hydrochloride
label of 19 May 202621 August 2026recorded here 28 August 2026
Forms and strengths
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- Added: Metformin hydrochloride tablets: 500 mg
1 entry reworded without a change of meaning.
Revisions
An approved label is not a fixed document. The FDA reissues it, and when that happens the old wording simply stops existing: there is no notice, no changelog and no feed to subscribe to. This page is the record we keep for the labels behind this catalog.
label of 19 May 202621 August 2026recorded here 28 August 2026
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1 entry reworded without a change of meaning.
label of 22 November 202330 July 2026recorded here 11 August 2026
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1 entry reworded without a change of meaning.
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label of 15 January 202621 May 2026published 21 May 2026, reconstructed from the DailyMed archive
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label of 22 December 202525 March 2026published 25 March 2026, reconstructed from the DailyMed archive
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1 entry reworded without a change of meaning.
label of 10 September 202520 March 2026published 20 March 2026, reconstructed from the DailyMed archive
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2 entries reworded without a change of meaning.
1 entry reworded without a change of meaning.
label of 17 January 202420 March 2026published 20 March 2026, reconstructed from the DailyMed archive
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1 entry reworded without a change of meaning.
label of 17 November 202511 March 2026published 11 March 2026, reconstructed from the DailyMed archive
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7 entries reworded without a change of meaning.
label of 26 February 20263 March 2026published 3 March 2026, reconstructed from the DailyMed archive
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1 entry reworded without a change of meaning.
1 entry reworded without a change of meaning.
label of 17 November 202523 February 2026published 23 February 2026, reconstructed from the DailyMed archive
1 entry reworded without a change of meaning.
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2 entries reworded without a change of meaning.
2 entries reworded without a change of meaning.
2 entries reworded without a change of meaning.
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23 entries reworded without a change of meaning.
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22 entries reworded without a change of meaning.
6 entries reworded without a change of meaning.
label of 26 January 20269 February 2026published 9 February 2026, reconstructed from the DailyMed archive
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2 entries reworded without a change of meaning.
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1 entry reworded without a change of meaning.
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label of 23 January 20265 February 2026published 5 February 2026, reconstructed from the DailyMed archive
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1 entry reworded without a change of meaning.
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label of 31 December 202526 January 2026published 26 January 2026, reconstructed from the DailyMed archive
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label of 31 December 202523 January 2026published 23 January 2026, reconstructed from the DailyMed archive
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label of 17 November 202531 December 2025published 31 December 2025, reconstructed from the DailyMed archive
1 entry reworded without a change of meaning.
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2 entries reworded without a change of meaning.
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3 entries reworded without a change of meaning.
label of 25 December 20241 December 2025published 1 December 2025, reconstructed from the DailyMed archive
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Every label in the catalog is stored with its set identifier, version and effective date, and that store is kept under version control. When a label is re-imported and the regulator has issued a new revision, the two versions sit side by side and can be compared line by line.
Only a change of revision counts here. Improvements to our own parsing do not move the effective date and never appear on this page, because they are our changes, not the FDA's.
Entries marked "from the archive" go back further than this site does. DailyMed keeps every published version of every label, and those entries were reconstructed by comparing archived versions pairwise, with the same rules. For each of them the date shown is the day the National Library of Medicine published that version.
Rewording is separated from substance. Between revisions the FDA moves commas and rephrases sentences without changing what they mean; those are counted but not quoted, so that an added indication is not buried under punctuation.
It covers only the 57 labels this site is built from, not every medication approved in the United States. The live record begins with the catalog in July 2026; everything earlier is reconstructed from the DailyMed version archive and marked as such.
For live entries the record shows when a revision reached us, not the day the FDA published it. Those are usually close but not identical, and the effective date of the document is the authoritative one.
For the full text of any label, follow the link to DailyMed from the medication page. This site quotes sections; it does not reproduce documents.