Abstract
Purpose
Antispasmodics like phloroglucinol are commonly used to alleviate pain. Various authorities recommend the use of this drug for conditions such as dysmenorrhoea, threatened abortion or labour pains. The goal was to carry out a systematic review analysing the existing data concerning the efficacy of phloroglucinol to treat pain in obstetrical or gynaecologic cases. The protocol was registered in Prospero (CRD 42018094065).
Methods
The keywords “phloroglucinol” and “randomised controlled trials” were used to search Medline, Embase and the Cochrane Library. We selected randomised, controlled against placebo trials testing the effect of phloroglucinol on gynaecologic or obstetrical pain either as a primary or secondary endpoint. We excluded trials exploring pain caused by intestinal, renal, metabolic or other causes and trials that were not available for critical review in either English or French. A quantitative synthesis (meta-analysis) was planned if the included trials were sufficiently homogenous. If this were not the case, a descriptive synthesis would be presented.
Results
Twelve trials identified studied the effect of phloroglucinol in gynaecologic or obstetrical conditions. Only two trials corresponded to the inclusion criteria of this review, one of which was not available for critical review.
Conclusions
Phloroglucinol is not well evaluated in this field. Whether for labour pains, abortion pains or benign gynaecologic pains, the results found are insufficient to promote the use of this drug in these indications.
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Data availability
Dr. Blanchard had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Change history
23 November 2019
The correct presentation of the Author names are shown in this paper.
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Dr. Blanchard and Dr. Boussageon: study concept and design.
Dr. Blanchard, Dr. Vaillant-Roussel and Dr. Boussageon: acquisition, analysis, or interpretation of data.
Dr. Blanchard: drafting of the manuscript.
Dr. Mignot, Dr. Vanderkam and Dr. Pouchain: critical revision of the manuscript for important intellectual content.
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Clara, B., Paul, V., Denis, P. et al. Efficacy of phloroglucinol for the treatment of pain of gynaecologic or obstetrical origin: a systematic review of literature of randomised controlled trials. Eur J Clin Pharmacol 76, 1–6 (2020). https://doi.org/10.1007/s00228-019-02745-7
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DOI: https://doi.org/10.1007/s00228-019-02745-7