Strong sleeping pills known as 'Z-drugs' are linked with an increased risk of falls, fractures, and stroke among people with dementia - according to research from the University of East Anglia. Sleep disturbance is common among people with dementia and the impact for patients and their families is significant. The study was published in the journal BMC Medicine. But a new study reveals that stronger doses of these drugs are linked with an increased risk of adverse effects. These adverse effects were found to be similar or greater than those for higher dose benzodiazepines or 'benzos' - which are also used to treat sleep disturbance, and are known to have several adverse effects. The team said that patients already taking higher doses of Z-drugs should not stop taking their medication suddenly. However, they should seek a review with their GP. Those on lower doses(?3.75mg zopiclone or equivalent), however were not found to have an increased risk of adverse outcomes.