Evidence map›Paper›PMID 31811328›Full record

ArticleNaunyn-Schmiedeberg's archives of pharmacology2020

Metamizole and the risk of drug-induced agranulocytosis and neutropenia in statutory health insurance data.

Sebastian Klose, René Pflock, Inke R König, Roland Linder, Markus Schwaninger

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In one paragraph

Article in Naunyn-Schmiedeberg's archives of pharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 15% of its field
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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Metamizole: Indications and Risks.Deutsches Arzteblatt international · 2026
    Review
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  13. Metamizole-induced agranulocytosis (MIA): a mini review.Molecular and cellular pediatrics · 2023
    Review
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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

5 authors at 2 institutions in 1 country.

Sebastian KloseTechniker Krankenkasse, Hamburg, Germany.
René PflockInstitute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Ratzeburger Allee 160, 236562, Lubeck, Germany.
Inke R KönigInstitute of Medical Biometry and Statistics, University of Lübeck, Lubeck, Germany.
Roland LinderTechniker Krankenkasse, Hamburg, Germany.
Markus SchwaningerInstitute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Ratzeburger Allee 160, 236562, Lubeck, Germany. markus.schwaninger@uni-luebeck.de.ORCID 0000-0002-4510-9718
University of Lübeck · DETechniker Krankenkasse (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The non-opioid analgesic metamizole (dipyrone) is used for the treatment of acute and chronic pain and fever. Agranulocytosis is known as a serious adverse drug reaction of metamizole with potentially fatal outcome. However, its frequency is controversially discussed. The aim of our study was to determine the risk of metamizole-associated agranulocytosis and neutropenia using statutory health insurance data. We analyzed data from a large German health insurance fund in the period from 2010 to 2013. Metamizole-exposed subjects were identified and compared to a propensity score-matched control cohort. A total of 630,285 metamizole-treated subjects and 390,830 matched control subjects were included. In the metamizole cohort, ICD codes for agranulocytosis and neutropenia appeared more often than in non-users. The relative risk for drug-induced agranulocytosis and neutropenia (D70.1) was 3.03 (95% confidence interval, 2.49 to 3.69). The risk for developing drug-induced agranulocytosis and neutropenia after metamizole prescription was 1: 1602 (CI 95%, 1:1926 to 1:1371). Our results confirm the risk estimation of previous studies. However, the outcome of our study may be confounded by an association of metamizole treatment and chemotherapy. Therefore, consequences for treatment have to be drawn with care.

Indexed as

AdultAgedAnti-Inflammatory Agents, Non-SteroidalAntipyreticsDipyroneFemaleHumansInsurance, HealthMaleMiddle AgedNeutropeniaRiskAnti-Inflammatory Agents, Non-SteroidalAntipyreticsDipyroneAgranulocytosisClaims-based studyDipyroneMetamizoleNeutropeniaStatutory health insurance

Identifiers

PMID31811328
OpenAlexW2994327088

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.