Management of Anxiety and Agitation with Lorazepam
Introduction to Lorazepam Use
- The American Academy of Family Physicians recommends lorazepam for treatment of anxiety, agitation, or as an adjunct for symptom management in patients who can no longer take primidone 1, 2
Dosing Recommendations
- For patients who can swallow, the British Medical Journal suggests starting with lorazepam 0.5-1 mg orally four times a day as needed, with a maximum of 4 mg in 24 hours 3
- The British Medical Journal recommends reducing the dose to 0.25-0.5 mg in elderly or debilitated patients, with a maximum of 2 mg in 24 hours 3
- For patients unable to swallow, the Annals of Oncology recommends lorazepam 1 mg subcutaneously or intravenously, up to 2 mg maximum 4
Clinical Considerations
- The American Academy of Family Physicians and the National Comprehensive Cancer Network recommend lorazepam for management of insomnia, anxiety, and agitation 1, 5
- The National Comprehensive Cancer Network suggests that lorazepam can be particularly useful when symptoms are not adequately controlled with other medications 6
- For dyspnea management, the National Comprehensive Cancer Network recommends adding lorazepam if dyspnea is not relieved by opioids and is associated with anxiety 5, 6
Important Precautions
- The American Academy of Family Physicians warns that regular use of lorazepam can lead to tolerance, addiction, depression, and cognitive impairment 1
- The American Academy of Family Physicians notes that paradoxical agitation occurs in approximately 10% of patients treated with benzodiazepines 1
Special Populations
- In elderly patients, the British Medical Journal recommends starting with lower doses of 0.25-0.5 mg 3
- The Annals of Oncology notes that elderly patients have an increased risk of falls 4
- The American Academy of Family Physicians warns that elderly patients have a higher risk of cognitive impairment 1
- In patients with respiratory conditions, the Annals of Oncology recommends using caution in patients with severe pulmonary insufficiency 4
- The Annals of Oncology suggests using lower doses in patients with COPD 4