Benzodiazepine Tapering in Older Adults
Gradual tapering is recommended rather than abrupt discontinuation for benzodiazepines used for longer than 1 month. [1] For patients on long-term lorazepam who want to taper, switching to a longer-acting benzodiazepine such as diazepam may be considered to facilitate tapering, but the decision should be patient-specific in older adults because pharmacokinetic differences can affect safety and tolerability. [2]
Medication Selection Algorithm
Switching to diazepam to facilitate tapering is a consideration when the taper is difficult with a shorter-acting agent. [2] Key decision factors include the following:
- Patient and provider preference for using a longer-acting agent to support tapering. [2]
- Pharmacokinetic and metabolism differences in older adults when selecting the tapering benzodiazepine. [2]
- Use of conversion to a single long-acting benzodiazepine when multiple benzodiazepines are being taken. [3]
Key Evidence Supporting This Recommendation
Evidence supporting diazepam substitution before tapering is limited. [3] NICE guidance notes a small, low-quality evidence base and states that the recommendation to consider conversion to diazepam is partially formed by consensus. [3] VA/DoD guidance states that switching from a shorter-acting benzodiazepine to a longer-acting benzodiazepine may not improve outcomes, while conversion of multiple benzodiazepines to one may be advantageous. [2]
Monotherapy vs Combination Therapy
Benzodiazepine tapering is carried out as a dose-reduction strategy for the benzodiazepine being withdrawn, rather than combining benzodiazepines as a long-term strategy. [1] When multiple benzodiazepines are used, conversion to a single benzodiazepine (often diazepam) before tapering is described as common practice. [3]
Important Clarifications and Nuances
Diazepam conversion is described as common practice because longer half-life benzodiazepines may allow more manageable pace of reduction and fewer fluctuations in benzodiazepine levels. [3] Switching is not guaranteed to improve outcomes, and patient-specific factors are emphasized for older adults. [2]
Treatment Initiation Thresholds
Long-term benzodiazepine use should not be managed with abrupt cessation. [1] VA/DoD guidance supports gradual tapering for benzodiazepine withdrawal management. [2]
Common Pitfalls to Avoid
Abrupt discontinuation after more than 1 month of benzodiazepine use is discouraged due to withdrawal risk. [1] Introducing a different benzodiazepine during tapering carries the risk of new medication-related complications, which is specifically noted in NICE deliberations about conversion to diazepam. [3]
Target Blood Pressure
Not applicable to this clinical question.