Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 11/3/2025

Dangers of Long-Term Sobril (Clobazam) Use

Definition and Risks of Long-Term Use

  • Current consensus guidelines define short-term benzodiazepine use as a maximum of 4 weeks, with any use beyond this timeframe considered long-term and associated with increased risks, according to the Mayo Clinic Proceedings 1
  • Long-term benzodiazepine use, including Sobril (clobazam), carries significant risks of physical dependence, cognitive impairment, falls, and withdrawal reactions, with "long-term" defined as use beyond 4-6 weeks in current consensus guidelines, as stated by the Mayo Clinic Proceedings 1

Cognitive and Psychomotor Impairment

  • Benzodiazepines cause cognitive impairment, reduced mobility, unsafe driving skills, and decline of functional independence, particularly problematic in older adults, as reported by the Mayo Clinic Proceedings 1

Falls and Fractures

  • Long-term benzodiazepine use is associated with increased risk of falls and fractures, especially in elderly patients who are 7-18 times more likely to be prescribed these medications compared to middle-aged adults, according to the Mayo Clinic Proceedings 1
  • Psychomotor impairment is particularly pronounced in elderly patients, who are significantly more sensitive to benzodiazepine effects, as noted by Critical Care Medicine 2

Special Considerations

  • Patients with hepatic or renal dysfunction have reduced benzodiazepine clearance and prolonged elimination, increasing toxicity risk, as stated by Critical Care Medicine 2

Clinical Pitfalls to Avoid

  • Avoid rapid dose escalation, as this increases seizure risk with clobazam, as reported by the Journal of the American Academy of Child and Adolescent Psychiatry 3
  • Do not overlook propylene glycol toxicity when using IV benzodiazepine formulations in critically ill patients, as warned by Critical Care Medicine 2