Evidence map›Paper›PMID 33389551›Full record

ArticleJournal of natural medicines2021

Sedative effects of l-menthol, d-camphor, phenylethyl alcohol, and geraniol.

Tomoko Oshima, Michiho Ito

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of natural medicines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Advancing infection therapy: the role of novel menthol-based antimicrobials.Journal of enzyme inhibition and medicinal chemistry · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Antidepressant-like Activity of Patchouli Oil var. Tapak Tuan (Pharmaceuticals (Basel, Switzerland) · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Essential Oil from the Leaves ofPharmaceuticals (Basel, Switzerland) · 2021
    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

2 authors at 1 institution in 1 country.

Tomoko OshimaDepartment of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
Michiho ItoDepartment of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan. michihoi@pharm.kyoto-u.ac.jp.
Kyoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Various essential oils from plants and fragrance components such as monoterpenes have been discovered to reduce spontaneous movements in mice; thus, it has been made clear that the odor itself has the sedative activity. In the present study, we examined the sedative activity of the odors of fragrance components added to eye drops; l-menthol, d-camphor, phenylethyl alcohol, and geraniol, which are often used as refreshers or preservatives. Each fragrance component was administered by the inhalation route to mice, and the sedative effects were evaluated using an open field test. The results showed that four components administered via inhalation to mice significantly decreased the amount of spontaneous motor activity in a dose-dependent manner, indicating that all four components have a sedative effect. The optimal concentrations at which l-menthol, d-camphor, phenylethyl alcohol, and geraniol showed the highest sedative activity were 4 × 10

Indexed as

Acyclic MonoterpenesAnimalsCamphorHypnotics and SedativesMaleMentholMiceMonoterpenesPhenylethyl AlcoholPlant ExtractsAcyclic MonoterpenesCamphorgeraniolHypnotics and SedativesMentholMonoterpenesPhenylethyl AlcoholPlant Extractsd-camphorGeranioll-mentholPhenylethyl alcoholSedative effect

Identifiers

PMID33389551
OpenAlexW3120285428

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.