Evidence map›Paper›PMID 34984836›Full record

ArticleDrug testing and analysis2022

Excretion of mephedrone and its phase I metabolites in urine after a controlled intranasal administration to healthy human volunteers.

Joanna Czerwinska, Mark C Parkin, Claire George, Andrew T Kicman, Paul I Dargan, Vincenzo Abbate

Open access · hybridAbstract read
In one paragraph

Article in Drug testing and analysis, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.0field-weighted citation impact, top 31% 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

3 citing papers in PubMed, 9 citations in OpenAlex.

  1. Mephedrone and Its Metabolites: A Narrative Review.International journal of molecular sciences · 2025
    Review
  2. Article
  3. Article
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 at 2 institutions in 1 country.

Joanna CzerwinskaDepartment of Analytical, Environmental and Forensic Sciences, King's College London, London, UK.ORCID https://orcid.org/0000-0002-4865-0710
Mark C ParkinDepartment of Analytical, Environmental and Forensic Sciences, King's College London, London, UK.
Claire GeorgeToxicology Department, Abbott Toxicology Ltd, Alere Toxicology (now part of Abbott), Oxfordshire, UK.
Andrew T KicmanDepartment of Analytical, Environmental and Forensic Sciences, King's College London, London, UK.
Paul I DarganClinical Toxicology, Faculty of Life Sciences and Medicine, King's College London, London, UK.
Vincenzo AbbateDepartment of Analytical, Environmental and Forensic Sciences, King's College London, London, UK.ORCID https://orcid.org/0000-0002-3300-0520
King's College London · GBAbbott (United Kingdom) · GB

Funding

Alere Toxicology (now part of Abbott)Biotechnology and Biological Sciences Research Council BB/M014940/1
6 · The paper itself

Abstract

Mephedrone is a stimulant drug structurally related to cathinone. At present, there are no data available on the excretion profile of mephedrone and its metabolites in urine after controlled intranasal administration to human volunteers. In this study, six healthy male volunteers nasally insufflated 100 mg of pure mephedrone hydrochloride (Day 1). Urine was collected at different timepoints on Day 1 and then on Days 2, 3 and 30. Samples were analysed for the presence of mephedrone and its metabolites, namely, dihydro-mephedrone, nor-mephedrone (NOR), hydroxytolyl-mephedrone, 4-carboxy-mephedrone (4-carboxy) and dihydro-nor-mephedrone (DHNM), by a validated liquid chromatography-tandem mass spectrometry method. All analytes were detected in urine, where 4-carboxy (C

Indexed as

Central Nervous System StimulantsMethamphetamineAdministration, IntranasalHealthy VolunteersHumansMaleTandem Mass SpectrometryCentral Nervous System StimulantsmephedroneMethamphetamineintranasal administrationmephedronemetabolitesurine

Identifiers

PMID34984836
PMCPMC9306721
OpenAlexW4206835125

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.