Metformin: Research History & Formulation Comparisons

How the research connects to the formula

A study in diabetes prevention, diabetes treatment or another setting starts from a different population and endpoint. The ingredient name alone cannot make these outcomes interchangeable.

Extended-release formulation, administered daily quantity and treatment duration are useful comparison fields. They connect a publication to the catalog more precisely than counting how many papers mention metformin.

Current HealthRX.com formulation map
Product	Listed formulation	Connected ingredient research
Metformin ER	Metformin ER 500 mg	Metformin

Publication history

When the ingredient appeared in the literature

The chart counts records mentioning the search terms in their title or abstract. It includes research beyond longevity. Use the period controls to inspect the count.

2026: 2,088 indexed publications. 2026 includes publications dated through October 5. The earlier bars cover longer periods than the annual bars.

View the chart as a data table

Period	Publications
1900-1959	0
1960-1969	30
1970-1979	123
1980-1989	191
1990-1999	713
2000-2009	3988
2010-2014	5359
2015-2019	8647
2020	2270
2021	2406
2022	2336
2023	2275
2024	2331
2025	2703
2026	2088

Search query and data source

Source: Europe PMC’s PubMed-indexed records. Retrieved October 5, 2026. The index’s firstPublicationDate field supplies the dates and chart periods; it can normalize a month-only record to the first day of the month. Dates through October 5 are included. Counts can change as the index adds or corrects records.

TITLE_ABS:(metformin) AND SRC:MED AND FIRST_PDATE:[1900-01-01 TO 2026-10-05]

Open this literature search · Download the data

A closer search for this product question

The focused search returns 141 publications. It narrows the ingredient query to terms connected with its catalog use. Its displayed records remain a search sample, not a ranking of study quality.

View the focused query

TITLE_ABS:(metformin) AND TITLE_ABS:(("diabetes prevention" AND randomized)) AND SRC:MED AND FIRST_PDATE:[1900-01-01 TO 2026-10-05]

Open the focused search

Dated publications

Read individual records in context

The timeline combines selected references with a sample from the ingredient search. Dates use the index’s firstPublicationDate field; the PubMed record may distinguish an earlier online date from the print date. Written study notes appear alongside the records that have them. Other entries show the indexed bibliography and link to the paper.

review-article · Randomized Controlled Trial · Journal Article

Analysis of Long-term Follow-up of a Randomized Clinical Trial With Departures From Assigned Treatments: Estimation of Metformin Effects on Diabetes and Its Complications in the Diabetes Prevention Program Outcomes Study.

Knowler WC, Pan Q, Shu S, Tripputi MT, Dabelea D, Edelstein SL, Kahn SE, Kuo S, Luchsinger JA, Shah V, Wallia A, Temprosa M, Diabetes Prevention Program Research Group . Diabetes care. PMID 40857175.

This record identifies a publication and its indexed publication types. The full paper contains the study methods, population, formulation and results.

Read the PubMed record · Publisher record

Questions that shape the comparison

Was the preparation extended-release? What baseline condition and clinical outcome did the study define?

Source records

Analysis of Long-term Follow-up of a Randomized Clinical Trial With Departures From Assigned Treatments: Estimation of Metformin Effects on Diabetes and Its Complications in the Diabetes Prevention Program Outcomes Study.Knowler WC, Pan Q, Shu S, Tripputi MT, Dabelea D, Edelstein SL, Kahn SE, Kuo S, Luchsinger JA, Shah V, Wallia A, Temprosa M, Diabetes Prevention Program Research Group .Diabetes care. 2025-10-01. PMID 40857175. review-article, Randomized Controlled Trial, Journal Article.

The efficacy of intermittent metformin plus lifestyle intervention for diabetes prevention in women with prediabetes and prior gestational diabetes: a randomized clinical, non-inferiority trial.Lai F, Pei L, Xu C, Xiao H, Li Z, Chen N, Zhou Y, Liang S, Zhang Y, Ling L, Wen Y, Yue S, Chen Y, Huang X, Liang Y, Xiong W, Chen W, Wang C, Deng W, Chen H, Putman MS, Liu L, Hong S, Li H, Li Y, Cao X.BMC medicine. 2026-07-13. PMID 42443901. Journal Article.

Lung function after randomization to metformin, lifestyle intervention or placebo in the Diabetes Prevention Program Outcomes Study (DPPOS).Pistenmaa CL, Doherty L, Hermann EA, Brown AL, Dabelea D, Holguin F, Watson K, Knowler WC, Temprosa M, Barr RG, DPP Research Group.Respiratory medicine. 2026-08-04. PMID 42551713. Randomized Controlled Trial, Journal Article.

Metformin. 2026-08-15. PMID 30000079. Review.

Intracapsular metformin bioactivity and its role in posterior capsule opacification.Spartalis C, Ruiss M, Dechat T, Kronschläger M, Findl O.The British journal of ophthalmology. 2026-09-22. PMID 41748315. Journal Article.

Metformin Pharmacogenetics in Heart Failure Patients with Reduced Ejection Fraction: Impact on Metformin and Growth Differentiation Factor-15 Plasma Levels.Larsen AH, Stage TB, Christensen MMH, Feddersen S, Nielsen F, Nørrelund H, Frøkiær J, Jessen N, Brøsen K, Wiggers H.Clinical pharmacokinetics. 2026-09-28. PMID 42804152. Journal Article.

Microbial aldehyde-alcohol dehydrogenase degrades metformin to limit therapeutic response in type 2 diabetes.Zhao Y, Peng C, Xia Y, Dong T, Xu J, Shan X, Zhong X, Xue J, Bing Z, Li P, Han J, Nie Y, He K, Cao Y, Wang T.Cell metabolism. 2026-09-29. PMID 42810351. Journal Article.

Metformin Use Before Assisted Reproductive Technology and Pregnancy Outcomes in Women With Polycystic Ovary Syndrome: A Nationwide Cohort Study.Cho Y, Park YS, Lee Y, Lim H, Shin JY, Kwak SH.Clinical pharmacology and therapeutics. 2026-10-02. PMID 42827289. research-article, Journal Article.

Research data assembled by HealthRX.com from the displayed source records, October 5, 2026. The atlas contains a dated literature search and selected studies; it is not an exhaustive systematic review.