PRN Medications for Anxiety in Patients Taking Trazodone

Benzodiazepine Options

The American College of Oncology recommends lorazepam as the PRN medication for anxiety in patients taking trazodone, with a suggested starting dose of 0.25-0.5 mg orally as needed, particularly effective for episodic anxiety in patients with a history of anxiety disorders 1, 2
Lorazepam can be administered orally or sublingually for faster onset, with lower doses recommended in older or frail patients, such as those over 65 years old 2
Midazolam is an alternative option for severe anxiety episodes, typically at 0.5-1 mg subcutaneous/intravenous PRN, more commonly used in inpatient or emergency settings for patients with severe anxiety symptoms 1, 2
Midazolam may cause more sedation than lorazepam, and is often used in patients who require rapid relief from anxiety symptoms 2

The American College of Oncology recommends monitoring for excessive sedation when combining benzodiazepines with trazodone, starting with the lowest effective dose and titrating cautiously, particularly in patients with a history of substance abuse 2
There is an increased risk of falls, especially in elderly patients, and lower doses should be used in older adults or those with compromised respiratory function, such as patients with chronic obstructive pulmonary disease (COPD) 2

Quetiapine is an alternative option, 25 mg immediate release orally as needed, less likely to cause extrapyramidal side effects than other antipsychotics, with sedating properties that can help with anxiety symptoms in patients with a history of anxiety disorders 1, 2
Hydroxyzine is an antihistamine with anxiolytic properties that can be used PRN, with a lower risk of dependence compared to benzodiazepines, and may cause sedation and anticholinergic effects in patients with a history of allergies or asthma 2

The American College of Oncology recommends considering patient factors, such as age and frailty, when choosing a PRN medication for anxiety, with lower doses recommended in elderly patients, such as those over 65 years old 2
A history of substance abuse should be considered when using benzodiazepines, and caution should be used in patients with a history of addiction 2
Respiratory conditions, such as COPD, should be considered when choosing a PRN medication for anxiety, with reduced doses recommended in patients with compromised respiratory function 2
The American College of Oncology recommends starting with the lowest effective dose, such as lorazepam 0.25-0.5 mg PRN, and evaluating response before considering dose increases, particularly in patients with a history of anxiety disorders 2
Monitoring for adverse effects, such as excessive sedation, dizziness, confusion, falls, and paradoxical reactions, is recommended when using PRN medications for anxiety in patients taking trazodone, particularly in patients with a history of substance abuse or respiratory conditions 2