last updated 31-07-2021

Drug-induced delirium

Drug-induced delirium

Drug induced delirium occurs frequently in older patients. Particularly in those who are taking more than 5 medicines a day. Delirium is described as a confusional state that is being acutely developed and fluctuating through the day. There is disorganized thinking with at least two of the following:
a. reduced level of consciousness
b. perceptual disturbances
c. disturbances of sleep-wake cycle
d. increased or decreased psychomotor activity
e. disorientation to time, place or person
f. memory impairment

Drugs that are commonly associated with delirium are shown below:


Drugs with anticholinergic side effects are shown in detail in the next slide.