Opioid use is increasing in pregnancy as well as in the general population. A “Five things to know about …” practice article on opioid disuse in pregnancy in CMAJ (Canadian Medical Association Journal) provides information on how to manage this vulnerable population. Reference: “Opioid use disorder in pregnancy” (PDF) by Anshula Ambasta MD MPH  and Mary Malebranche MD MA, 23 September 2019, CMAJ.DOI: 10.1503/cmaj.190391