Evidence map›Paper›PMID 26865984›Full record

ArticleJournal of pharmaceutical health care and sciences2016

Assessment of drug content uniformity of atropine sulfate triturate by liquid chromatography-tandem mass spectrometry, X-ray powder diffraction, and Raman chemical imaging.

Kei Moriyama, Yoichiro Takami, Natsuki Uozumi, Akiko Okuda, Mayumi Yamashita, Rie Yokomizo, Kenichi Shimada, Takashi Egawa, Takehito Kamei, Kazunobu Takayanagi

Open access · goldAbstract readCase Reports
In one paragraph

Article in Journal of pharmaceutical health care and sciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

2 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
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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

10 authors at 2 institutions in 1 country.

Kei MoriyamaShujitsu University, School of Pharmacy, 1-6-1 Nishigawara, Naka-ku, Okayama 703-8516 Japan.
Yoichiro TakamiShujitsu University, School of Pharmacy, 1-6-1 Nishigawara, Naka-ku, Okayama 703-8516 Japan.
Natsuki UozumiDepartment of Pharmacy, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, 710-8602 Japan.
Akiko OkudaDepartment of Pharmacy, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, 710-8602 Japan.
Mayumi YamashitaShujitsu University, School of Pharmacy, 1-6-1 Nishigawara, Naka-ku, Okayama 703-8516 Japan.
Rie YokomizoShujitsu University, School of Pharmacy, 1-6-1 Nishigawara, Naka-ku, Okayama 703-8516 Japan.
Kenichi ShimadaShujitsu University, School of Pharmacy, 1-6-1 Nishigawara, Naka-ku, Okayama 703-8516 Japan.
Takashi EgawaShujitsu University, School of Pharmacy, 1-6-1 Nishigawara, Naka-ku, Okayama 703-8516 Japan.
Takehito KameiDepartment of Pharmacy, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, 710-8602 Japan.
Kazunobu TakayanagiDepartment of Pharmacy, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, 710-8602 Japan.
Shujitsu University · JPKurashiki Central Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAtropine sulfate is an anticholinergic agent for treatment of hypertrophic pyloric stenosis and is orally administrated as a triturate with lactose hydrate. Because of the low safety margin of atropine sulfate, triturate uniformity is a key safety factor. In this study, we assessed the uniformity of atropine sulfate in 1000-fold triturates prepared by wet mixing and dry mixing methods and discussed the cause of the difference in uniformity between two preparation methods.

methodsA 1000-fold triturate of atropine sulfate with lactose hydrate was prepared by two different methods: wet mixing and dry mixing. The wet mixing was performed according to Kurashiki Central Hospital protocol and the dry mixing was a simple physical mixing by a rocking mixer. The uniformity of atropine sulfate content in aliquots of a 1000-fold triturate with lactate hydrate was assessed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) quantification. Solid-state analyses of the triturates by Raman chemical imaging and X-ray powder diffraction (XRPD) were performed to investigate the difference in uniformity.

resultsThe LC-MS/MS quantification showed that the uniformity of atropine sulfate in the 1000-fold triturate was excellent for wet mixing but was significantly variable for dry mixing. On the basis of the Raman chemical imaging and XRPD analyses, it was indicated that an amorphous thin film of atropine sulfate coated the surfaces of the lactose hydrate particles during wet mixing and contributed to the uniformity of the triturate. In contrast, clusters of the crystalline atropine sulfate were found in the dry mixing samples.

conclusionThe results showed that better atropine sulfate triturate uniformity was achieved using the wet mixing method rather than the dry method and the cause of the uniformity difference between two mixing methods was indicated by the multilateral assessment.

Indexed as

Atropine sulfateRaman imagingTriturateUniformityXRPD

Identifiers

PMID26865984
PMCPMC4748566
OpenAlexW2257522913

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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.