An evaluation of the practice of transparency and reproducibility in addiction medicine literature

•Reproducibility is an essential aspect of open science that allows synthesis of old and new knowledge.•Reproducibility makes research more efficient and prevents waste of resources.•It is unknown if reproducible research practices are being practiced by the research community in addiction medicine.•Our findings show a lack in practices that encourage and promote reproducible research in addiction medicine.•We propose several ways by which this lack of reproducibility can be improved.