Abrupt discontinuation of benzodiazepines can lead to withdrawal symptoms of the barbiturate type.
Is it true that Abrupt discontinuation of benzodiazepines can lead to withdrawal symptoms of the barbiturate type?
Yes. Abrupt discontinuation of benzodiazepines causes a severe GABA-deficient state and withdrawal symptoms resembling those of barbiturates because both drug classes share overlapping mechanisms as positive allosteric modulators of GABA-A receptors.
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Benzodiazepines and barbiturates both act on GABA-A receptors as positive allosteric modulators to enhance central nervous system inhibition. Because they share this fundamental receptor target, abrupt cessation of benzodiazepines triggers a hyperexcitable withdrawal state characterized by symptoms (such as anxiety, tremors, seizures, and delirium) that closely parallel barbiturate withdrawal.
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SM, T. (2024). Modulators of GABA<sub>A</sub> receptor-mediated inhibition in the treatment of neuropsychiatric disorders: past, present, and future.. doi.org. https://doi.org/10.1038/s41386-023-01728-8
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F, N., M, M., L, M., G, R., & J, M. (2026). Benzodiazepine Dependence: Clinical and Molecular Aspects, Preventive Strategies and Therapeutic Approaches.. doi.org. https://doi.org/10.3390/ijms27031430
What does the evidence say?
Benzodiazepines and barbiturates both act on GABA-A receptors as positive allosteric modulators to enhance central nervous system inhibition. Because they share this fundamental receptor target, abrupt cessation of benzodiazepines triggers a hyperexcitable withdrawal state characterized by symptoms (such as anxiety, tremors, seizures, and delirium) that closely parallel barbiturate withdrawal.
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