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In the elderly, long-term benzodiazepine therapy is a risk factor for amplifying cognitive decline, [29] although gradual withdrawal is associated with improved cognitive status. [30] A study of alprazolam found that 8 weeks administration of alprazolam resulted in deficits that were detectable after several weeks but not after 3.5 years. [31]
Failure to treat benzodiazepine dependence in the elderly can cause serious medical complications. [14] The elderly have less cognitive reserve and are more sensitive to the short (e.g., in between dose withdrawal) and protracted withdrawal effects of benzodiazepines, as well as the side-effects both from short-term and long-term use. This can ...
Improved reaction times were noted at 52 weeks in elderly patients free from benzodiazepines. This is an important function in the elderly, especially if they drive a car due to the increased risk of road traffic accidents in benzodiazepine users. [136] At the 24-week follow-up, 80% of people had successfully withdrawn from benzodiazepines.
The elderly metabolize benzodiazepines more slowly than younger people and are more sensitive to the adverse effects of benzodiazepines compared to younger individuals even at similar plasma levels. Additionally, the elderly tend to take more drugs which may interact with or enhance the effects of benzodiazepines.
The long-term effects of benzodiazepines and benzodiazepine dependence in the elderly can resemble dementia, depression, or anxiety syndromes, and progressively worsens over time. Adverse effects on cognition can be mistaken for the effects of old age.
The elderly are more prone to diazepam's confusion, amnesia, ataxia, hangover symptoms, and falls. Long-term use of benzodiazepines, such as diazepam, induces tolerance, dependency, and withdrawal syndrome. [19] Like other benzodiazepines, diazepam impairs short-term memory and learning new information.
In a Swedish (2003) study benzodiazepines were implicated in 39% of suicides by drug poisoning in the elderly 1992–1996. Nitrazepam and flunitrazepam accounted for 90% of benzodiazepine implicated suicides. In cases where benzodiazepines contributed to death, but were not the sole cause, drowning, typically in the bath, was a common method used.
Additionally the elderly are more sensitive to the adverse effects of benzodiazepines compared to younger individuals even when blood plasma levels are the same. Use of benzodiazepines in the elderly is only recommended for 2 weeks and it is also recommended that half of the usual daily dose is prescribed. [7]