A retrospective analysis of patients who were switched from methadone to a different opioid: How to treat cancer pain after patients become unable to take methadone orally at the end of life

Itakura, T., Matsuda, Y., Okayama, S., Tohno, K., Hiyoshi, R., Yoshida, K., … Noma, H. (2015). A retrospective analysis of patients who were switched from methadone to a different opioid: How to treat cancer pain after patients become unable to take methadone orally at the end of life. Palliative Care Research, 10(4), 245–250. https://doi.org/10.2512/jspm.10.245