Benzodiazepine
Long-term worsening of psychiatric symptoms

While benzodiazepines may have short-term benefits for anxiety, sleep and agitation in some patients, long-term (i.e., greater than 2–4 weeks) use can result in a worsening of the very symptoms the medications are meant to treat. Potential explanations include exacerbating cognitive problems that are already common in anxiety disorders, causing or worsening depression and suicidality, disrupting sleep architecture by inhibiting deep stage sleep, withdrawal symptoms or rebound symptoms in between doses mimicking or exacerbating underlying anxiety or sleep disorders, inhibiting the benefits of psychotherapy by inhibiting memory consolidation and reducing fear extinction, and reducing coping with trauma/stress and increasing vulnerability to future stress. The latter two explanations may be why benzodiazepines are ineffective and/or potentially harmful in PTSD and phobias. Anxiety, insomnia and irritability may be temporarily exacerbated during withdrawal, but psychiatric symptoms after discontinuation are usually less than even while taking benzodiazepines. Functioning significantly improves within 1 year of discontinuation.
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