Evidence map›Paper›PMID 40511545›Full record

ArticleBritish journal of clinical pharmacology2025

Prescription drug use in breastfeeding mothers and infant exposure: A register-based cohort study.

Ditte Resendal Gotfredsen, Ida M Heerfordt, Christoffer Storm Baden, Henrik Horwitz, Christina Gade, Jon Trærup Andersen

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Article in British journal of clinical pharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Ditte Resendal GotfredsenDepartment of Clinical Pharmacology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.ORCID https://orcid.org/0000-0001-5835-5726
Ida M HeerfordtDepartment of Clinical Pharmacology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.ORCID https://orcid.org/0000-0002-6130-875X
Christoffer Storm BadenDepartment of Clinical Pharmacology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.
Henrik HorwitzDepartment of Clinical Pharmacology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.
Christina GadeDepartment of Clinical Pharmacology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.ORCID https://orcid.org/0000-0002-0007-6158
Jon Trærup AndersenDepartment of Clinical Pharmacology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsBreast milk is the optimal infant nutrition; however, many infants may be exposed to prescription drugs if used by their mothers during breastfeeding. The aim of this study was to evaluate the prevalence and patterns of prescription drug use among breastfeeding mothers and to assess the availability of relative infant dose information for these drugs.

methodsThis population-based cohort study was conducted using nationwide Danish register data from January 2006 to December 2022. All registered mother-infant pairs were included during periods of exclusive breastfeeding. The national health registers were used to identify live births, breastfeeding status and prescription drug use by mothers during exclusive breastfeeding.

resultsAmong 534 080 exclusively breastfed infants, 290 845 (54.5%) were breastfed by mothers who used at least 1 prescription drug during the breastfeeding period. The drugs were primarily for haemorrhoids, contraception, infections and pain management. Among individual systemic drugs used during exclusive breastfeeding, 51.5% lacked information on relative infant dose.

conclusionsThis large-scale cohort study reveals a high prevalence of prescription drug use during exclusive breastfeeding, often involving drugs with unknown safety profiles regarding their transfer into human milk. These findings highlight the need for updated regulatory measures and increased efforts by pharmaceutical companies to ensure reliable infant safety data.

Indexed as

Breast FeedingMilk, HumanPrescription DrugsAdultCohort StudiesDenmarkFemaleHumansInfantInfant, NewbornMaleMothersPrevalenceRegistriesYoung AdultPrescription Drugsbreastfeedinginfant exposurematernal drug useprescription drugsrelative infant dose information

Identifiers

PMID40511545
PMCPMC12464615

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.