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  • A Short History Of Benzodiazepine Abuse & Dependence

    Published on April 7, 2021
    History Of Benzodiazepines

    Benzodiazepines, or benzos, are a common psychotropic prescription medication used in United States health care. However, the warnings and precautions surrounding benzodiazepine prescribing have changed significantly in the past several years.

    These changes are a long-time-coming response to a better understanding of how benzodiazepines impact the human body and mind over time, at different ages, and in combination with other substances.

    Benzodiazepines: Origins

    The first synthetic tranquilizer drugs were not benzodiazepines, but rather barbiturates, a class of drug first synthesized in 1864 in Germany by Adolf von Baeyer and refined by the French chemist Edouard Grimaux in 1879.

    These drugs were marketed as safe and not habit-forming, and were widely sold over-the-counter in the United States during the Great Depression. With millions of Americans out of work, barbiturates were used to calm anxiety, fear, and insomnia through sedation.

    Unfortunately, barbiturates were far from harmless and prolonged use led to tolerance, dependence, severe withdrawal symptoms, and a significant risk of overdose.

    By 1951, congress required a doctor’s approval for the purchase of barbiturates, pushing pharmaceutical companies to begin searching a new generation of safer, more effective anti-anxiety tranquilizers.

    Early Use

    Leo Sternbach, a chemist at the Swiss drug firm Hoffmann-La Roche, synthetized the first benzodiazepine, chlordiazepoxide (Librium), in 1955. 

    Diazepam (Valium) followed in 1958, and benzodiazepines were prescribed for the treatment of anxiety disorders, panic disorders (panic attacks), and insomnia by 1960.

    The calming, muscle-relaxant effects of this new drug were similar to those of barbiturates, as they worked on similar receptors in the nervous system, increasing sensitivity to the GABA neurotransmitter. 

    But benzos were safer, with a lower toxicity and fewer obvious adverse effects. Drug makers and distributors were quick to hail the new drug and its variants as a safe and effective miracle of modern medicine.

    The Most Prescribed Drug In The World

    In the years that followed, benzodiazepines were prescribed by clinicians freely, and benzodiazepines became the most prescribed drug in the world. 

    This rise paralleled the discovery and release of other benzodiazepine prescription drugs with different potencies and half-lives, including:

    Side-Effects

    Although gaining popularity during this time, side effects were known to occur after both short- and long-term use.

    Potential side-effects of benzodiazepines over short-term use may include:

    • drowsiness
    • balance impairment
    • birth defects
    • memory impairment

    Long-term benzodiazepine use was also known to cause:

    • mental health issues, including long-term memory impairment and cognitive decline
    • rebound symptoms
    • dependence, resulting in benzodiazepine withdrawal syndrome when use is discontinued
    • overdose, following high doses or when combined with other forms of substance abuse that also suppress central nervous system activity

    Controversy

    In 1979, a senate hearing was called to address the dangers of benzodiazepines, particularly Valium. 

    However, the hearings failed to take into account the similarities between the “dangerous sedative” Valium and newer “safe anxiolytic” benzodiazepines. Little action was taken, even as many other first world nations heavily restricted all benzodiazepine use.

    In 1990, the American Psychiatric Association once again investigated the dangers of rising benzodiazepine prescriptions. They found that up to 80% of those taking the drugs experience withdrawal when use is discontinued. 

    By 2008, 5% of American adults were filling at least one benzodiazepine prescription.

    Class-Action Lawsuit

    In the United Kingdom in 1992, 14,000 patients brought a class action lawsuit against benzodiazepine manufacturers. 

    This was the largest suit in the UK’s history at that time, alleging that the companies failed to warn patients and doctors of the risks of dependence and health hazards. The suit did not result in a verdict.

    Modern Views

    In 2002, Dr. C. Heather Ashton, a British psychopharmacologist and leading medical expert on benzodiazepine withdrawal, published an online-available version of her detailed guide for managed benzodiazepine cessation, or tapering.

    Known today as the Ashton Manual, this document remains a valued tool for medical professionals and patients worldwide.

    With evidence of cognitive risks and dependence continuing to grow into the new millennium, policies and recommendations regarding benzodiazepine use have started to shift:

    • 2010: the Veterans Health Administration recommends benzodiazepines not be used as a treatment for PTSD
    • 2015: the British Medical Association publishes an influential report on the dangers of dependence and withdrawal posed by benzodiazepines and a similar class of drugs known as Z-drugs
    • 2016: the New York City Department of Health and Hygiene and the State of Pennsylvania issue guidelines that use of benzodiazepines be limited to periods of several weeks or less
    • 2016: the FDA issues a black box warning on the risk of dependence and the risk of combining benzodiazepines with opiates/opioids

    Treating Benzodiazepine Dependence & Addiction

    If you or a loved one lives with benzodiazepine addiction or dependence, treatment programs are available and may include therapy, detox support for withdrawal, and other peer-oriented recovery services. 

    To learn more, please contact us today to learn more about our personalized treatment programs.

    Written by Ark Behavioral Health Editorial Team
    ©2022 Ark National Holdings, LLC. | All Rights Reserved.
    This page does not provide medical advice.
    Sources

    Benzodiazepine Information Coalition - A Brief History of Benzodiazepines
    Newcastle University - Benzodiazepines: How They Work & How to Withdraw
    Neuropsychiatric Disease and Treatment - The history of barbiturates a century after their clinical introduction
    The Consultant Pharmacist - The history of benzodiazepines

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