Trial reportEuropean journal of clinical pharmacology2005
Effect of menthol on the pharmacokinetics and pharmacodynamics of felodipine in healthy subjects.
Trial report in European journal of clinical pharmacology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.
- Effects of Mentha on blood pressure: a GRADE-assessed systematic review and meta-analysis of randomized controlled trials.BMC complementary medicine and therapies · 2024Pooled it
- Pharmacokinetic Variability of Direct Oral Anticoagulants and Calcium Channel Blockers: A Comparative Analysis of Exposure Data from Clinical Studies.Pharmaceutics · 2026Article
- A Physiologically Based Pharmacokinetic and Pharmacodynamic Model of the CYP3A4 Substrate Felodipine for Drug-Drug Interaction Modeling.Pharmaceutics · 2022Article
- New directions in nicotine vaccine design and use.Advances in pharmacology (San Diego, Calif.) · 2014Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThe present study was undertaken to determine whether menthol affects the metabolism of and pharmacological responses to the calcium channel antagonist felodipine in people.
methodsEleven healthy subjects (ten female, one male) participated in a randomized, double-blind, two-way crossover study, comparing the kinetics and effects of a single oral dose of felodipine ER tablet (Plendil, 10 mg) with menthol (test) or placebo (reference) capsules. Ten subjects completed the study. At the beginning of the study, a 10-mg felodipine ER tablet and a 100-mg menthol or placebo capsule were given. During the 2nd, 5th and 7th hours of the study, 50, 25 and 25 mg menthol or placebo capsules were given, respectively. Blood samples and cardiovascular measurements were obtained at frequent intervals. Serum felodipine and dehydrofelodipine concentrations were determined by means of gas chromatography/mass spectrometry.
resultsPharmacokinetic parameters of felodipine and dehydrofelodipine (AUC0-24, Cmax, t(max), dehydrofelodipine/felodipine AUC0-24 ratio) were not markedly changed with menthol coadministration. Only eight female subjects' cardiovascular data were included in the analysis because of technical problems during the measurements. There were no statistically significant differences in blood pressures and heart rates between the two treatments.
conclusionsWe conclude that the pharmacokinetics and pharmacodynamics of felodipine were essentially unaltered by menthol.
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Registered trials
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.