Выражение встречается в следующем контексте:
Possible sources of oral hypoglycaemic agents included drug administration errors in residential care homes for the elderly (n=9), mistakenly taking medication of a family member or employer (n=6), taking stock medication by mistake (n=2), taking Chinese proprietary medicine adulterated with oral hypoglycaemic agents (n=l), taking unknown pills bought from a retail pharmacy (n=l), and unknown (n=4).
Заранее спасибо