Evidence map›Paper›PMID 32489757›Full record

ArticleJournal of general and family medicine2020

Effect of Shakuyaku-kanzo-to in patients with muscle cramps: A systematic literature review.

Koshi Ota, Keisuke Fukui, Eriko Nakamura, Masahiro Oka, Kanna Ota, Masahide Sakaue, Yohei Sano, Akira Takasu

Open access · goldAbstract read
In one paragraph

Article in Journal of general and family medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.1field-weighted citation impact, top 21% 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

14 citing papers in PubMed, 20 citations in OpenAlex.

  1. Trial
  2. Metabolomic analyses of amyotrophic lateral sclerosis, muscle cramps, and TJ-68 treatment.Metabolomics : Official journal of the Metabolomic Society · 2026
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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

8 authors at 1 institution in 1 country.

Koshi OtaDepartment of Emergency Medicine Osaka Medical College Takatsuki Japan.ORCID https://orcid.org/0000-0002-1461-7031
Keisuke FukuiResearch and Development Center Osaka Medical College Takatsuki Japan.
Eriko NakamuraDepartment of Emergency Medicine Osaka Medical College Takatsuki Japan.
Masahiro OkaDepartment of Emergency Medicine Osaka Medical College Takatsuki Japan.
Kanna OtaDepartment of Emergency Medicine Osaka Medical College Takatsuki Japan.
Masahide SakaueDepartment of Emergency Medicine Osaka Medical College Takatsuki Japan.
Yohei SanoDepartment of Emergency Medicine Osaka Medical College Takatsuki Japan.
Akira TakasuDepartment of Emergency Medicine Osaka Medical College Takatsuki Japan.
Osaka Medical and Pharmaceutical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious clinical studies have reported that Shakuyaku-kanzo-to (SKT) has a therapeutic effect on muscle cramps, but few studies have clarified how SKT acts to treat muscle cramps. The aim of this study was to perform an updated systematic review of clinical trials for SKT in patients with muscle cramps.

methodsThe literature was systematically reviewed to assess the effects of SKT in patients with muscle cramps. PubMed, Web of Science, Cochrane Library, Google Scholar, and Ichushi-Web were searched using the terms "Shakuyaku-kanzo-to" ("shakuyakukanzoto", etc), "clinical trials" and "muscle cramps". Two quality assessments were conducted independently by three authors. Data were extracted using a standardized extraction tool, and a qualitative synthesis of evidence was performed.

resultsThree randomized controlled articles were identified and enrolled in this study. A systematic review, but not a meta-analysis, was performed because of the high heterogeneity and limited number of studies. In patients with liver cirrhosis, the odds ratio (OR) for improvement with SKT compared to placebo was 1.27 (95% confidence interval [CI], 0.445-2.086) and compared to Goshajinkigan was 0.81 (95%CI, -1.734-0.114). The OR for improvement with SKT compared with eperisone hydrochloride in patients with lumbar spinal stenosis was 2.86 (95%CI, 0.980-4.744).

conclusionsCurrent evidence appears insufficient to allow a meta-analysis of the effects of SKT, but SKT might show efficacy in treating muscle cramps in patients with cirrhosis or lumbar spinal stenosis.

Indexed as

cirrhosislumbar spinal stenosismuscle crampsShakuyaku‐kanzo‐tosystematic review

Identifiers

PMID32489757
PMCPMC7260166
OpenAlexW3007670585

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.