What is the risk of fatal outcome with a combination of 2.5 mg melatonin, 50 mg trazodone (Trazodone hydrochloride), and 1 mg Lorazepam (Ativan)?

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Last updated: May 27, 2025View editorial policy

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From the Guidelines

The combination of 2.5 mg melatonin, 50 mg trazodone, and 1 mg Ativan (lorazepam) is unlikely to be lethal in most patients when taken as prescribed, but it carries significant risks that need to be carefully managed. These medications are commonly prescribed for sleep and anxiety disorders, often at these or similar doses. However, this combination does carry risks of enhanced sedation and respiratory depression due to the additive central nervous system depressant effects, particularly from the combination of trazodone and Ativan 1. The risk increases in elderly patients, those with respiratory conditions like sleep apnea or COPD, individuals with liver or kidney impairment, or when combined with alcohol or other sedatives.

According to the most recent and highest quality study, the use of benzodiazepines, such as Ativan, and trazodone for the treatment of chronic insomnia disorder is not recommended due to the potential harms outweighing the benefits 1. The study suggests that the risks of dependency, diversion, falls, and cognitive impairment in older patients, as well as hypoventilation in patients with respiratory conditions, substantially outweigh the benefits of these medications.

Key considerations for the use of this combination include:

  • Monitoring for signs of excessive sedation and respiratory depression
  • Avoiding use in elderly patients or those with respiratory conditions
  • Avoiding concomitant use with alcohol or other sedatives
  • Using the lowest effective dose and for the shortest possible duration
  • Counseling patients on the potential risks and benefits of this combination 1

In terms of specific guidance, patients should only take these medications together under medical supervision with proper prescription and monitoring. Any patient experiencing excessive drowsiness, confusion, slurred speech, difficulty breathing, or other concerning symptoms after taking this combination should seek immediate medical attention. It is also important to note that the use of melatonin, trazodone, and Ativan may have varying effects on sleep quality and duration, and patients should be closely monitored for any changes in their condition 1.

From the FDA Drug Label

The FDA drug label does not answer the question.

From the Research

Combination of Melatonin, Trazodone, and Ativan

  • The combination of 2.5 mg melatonin, 50 mg trazodone, and 1 mg Ativan is not directly addressed in the provided studies.
  • However, the individual components of this combination can be examined:
    • Melatonin: a review of sleep disorders and melatonin 2 suggests that melatonin is well-tolerated and has no obvious short- or long-term adverse effects.
    • Trazodone: a study on the use of trazodone in major depressive disorder 3 indicates that trazodone is usually well-tolerated and has a low risk of anticholinergic side effects, weight gain, and sexual side effects.
    • Ativan (lorazepam): while not directly addressed in the provided studies, it is a benzodiazepine with potential for dependence and addiction, as mentioned in the review of sleep disorders and melatonin 2.
  • The potential risks of combining these medications, particularly in terms of sedation and respiratory depression, are not explicitly discussed in the provided studies.
  • It is essential to note that the doses mentioned (2.5 mg melatonin, 50 mg trazodone, and 1 mg Ativan) are not necessarily typical or recommended doses for these medications, and the combination of these medications can increase the risk of adverse effects.
  • There is no direct evidence in the provided studies to suggest that this combination would be lethal, but the potential risks and interactions should be carefully considered by a healthcare professional.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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