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A clinically relevant lorazepam dose will normally be effective for six to 12 hours, making it unsuitable for regular once-daily administration, so it is usually prescribed as two to four daily doses when taken regularly, but this may be extended to five or six, especially in the case of elderly people who could not handle large doses at once.
Lorazepam. Sold under the brand name Ativan®, lorazepam is a benzodiazepine used for anxiety in some cases. Oxazepam. As a generic and the brand names drugs Serax and Zaxopam, oxazepam is used to ...
[citation needed] For example, the equivalent dose of diazepam in an elderly individual on lorazepam may be half of what would be expected in a younger individual. [7] [8] Equivalent doses of benzodiazepines differ as much as 20 fold. [9] [10] [11]
In 1989, in a 4- to 6-year follow-up study of 30 inpatient people who used benzodiazepines non-medically, Neuropsychological function was found to be permanently affected in some people with long-term high dose non-medical use of benzodiazepines. Brain damage similar to alcoholic brain damage was observed.
In the elderly a lower dose is recommended due to more pronounced effects and a significant impairment of standing up to 11 hours after dosing of 1 mg of loprazolam. The half-life is much more prolonged in the elderly than in younger patients. A half-life of 19.8 hours has been reported in elderly patients. [4]
The success of gradual-tapering benzodiazepines is as great in the elderly as in younger people. Benzodiazepines should be prescribed to the elderly only with caution and only for a short period at low doses. [94] [95] Short to intermediate-acting benzodiazepines are preferred in the elderly such as oxazepam and temazepam.
Commonly prescribed benzodiazepines in the U.S. are Valium (diazepam) and Ativan (lorazepam), which are used for muscle relaxation and to control anxiety and seizures.
The consensus is to reduce dosage gradually over several weeks, e.g. 4 or more weeks for diazepam doses over 30 mg/day, [1] with the rate determined by the person's ability to tolerate symptoms. [120] The recommended reduction rates range from 50% of the initial dose every week or so, [121] to 10–25% of the daily dose every 2 weeks. [120]