ArticleBMJ open2025
Effect of tropical climates on the quality of commonly used antibiotics: the protocol for a systematic review and meta-analysis.
Article in BMJ open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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
2 citing papers in PubMed.
- Environmental Fate, Soil Ecological Responses and Fruit Quality Impacts of Emerging Contaminants (Antibiotics) in Orchard Ecosystems: A Review.Molecules (Basel, Switzerland) · 2026Review
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionMedicine quality can be influenced by environmental factors. In low- and middle-income countries (LMICs) with tropical climates, storage facilities of medicines in healthcare settings and homes may be suboptimal. However, knowledge of the effects of temperature and other climatic and environmental factors on the quality of medicines is limited. A better understanding of the effects of climates may assist in the development of control strategies to help reduce factors contributing to poor-quality medicines. Therefore, this systematic review aims to synthesise data from published studies describing the effects of storage conditions on the quality of antibiotic medicines commonly used in LMICs. METHODS AND ANALYSIS: We will search literature from databases, including the PubMed, Web of Science, Scopus and Google Scholar, and grey literature between 1987 and 2022. Experimental studies that evaluate the influence of temperature, humidity and sunlight on the quality of antibiotics applicable to Africa and South Asia will be included. Experimental studies that assess naturally occurring and simulated storage conditions and medicines prepared from powder with water and stored in hospitals or at home to be used across several doses will be also included. The key search terms related to the tropical climate, quality and commonly used antibiotics, such as temperature, storage condition, humidity, sunlight and moisture; quality, assay, purity, dissolution, disintegration, hardness, friability, weight variation, weight uniformity, degradation, impurities and stability; and amoxicillin, ceftriaxone, azithromycin, ciprofloxacin, doxycycline, metronidazole, trimethoprim-sulfamethoxazole, erythromycin, ampicillin and gentamicin, respectively, will be connected using the appropriate Boolean operators (OR, AND). The search terms will be used in correspondence with Medical Subject Heading terms by keyword arrangement. The available evidence for the poor quality of commonly used antibiotics is summarised by the type of diagnosis, type of drug and region. Meta-analysis using random effects will be performed using RevMan software to determine the pooled effects of environmental exposures. The degree of heterogeneity will be evaluated by the inverse of variance (I ETHICS AND DISSEMINATION: Ethical approval is not required as the study is a systematic review. This review will be disseminated through open-access peer-reviewed publication. PROSPERO REGISTRATION NUMBER: CRD42023432848.
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Registered trials
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