Benzodiazepine withdrawal

A pattern of benzodiazepine use marked by impaired control, continued use despite harm, tolerance, and withdrawal, most often beginning with a prescription for anxiety or insomnia continued past its intended short course; management is a sequenced deprescribing taper after converting to a long-acting agent, paired with a non-benzodiazepine treatment of the underlying disorder.

Alcohol withdrawal syndrome is a staged, timeline-bound hyperexcitability state that follows abrupt cessation or reduction of heavy alcohol use, progressing from minor symptoms through alcoholic hallucinosis and withdrawal seizures to delirium tremens, a medical emergency with mortality as high as 5%. Diagnosis is clinical and severity is graded with the CIWA-Ar; first-line treatment is symptom-triggered benzodiazepine dosing plus thiamine given before glucose.

Opioid withdrawal is the autonomic, secretory, and gastrointestinal syndrome (piloerection, lacrimation, rhinorrhea, yawning, mydriasis, myalgias, diarrhea) that follows cessation, dose reduction, or antagonist reversal of opioid use, beginning within hours for short-acting opioids but taking days for long-acting agents such as methadone. Diagnosis is clinical. First-line treatment is an opioid agonist, methadone or buprenorphine, with clonidine and symptom-targeted agents added for residual symptoms.

Generalized anxiety disorder is excessive, hard-to-control worry about multiple life domains occurring more days than not for at least 6 months, with at least 3 of 6 associated physical symptoms and functional impairment. Screen with the GAD-7 after excluding hyperthyroidism and substance use, then treat first-line with cognitive behavioral therapy and/or an SSRI or SNRI such as escitalopram or venlafaxine extended-release, reserving benzodiazepines for short-term severe symptom control only.

Panic disorder is an anxiety disorder defined by recurrent, unexpected panic attacks, discrete surges of fear that peak within 10 minutes with 4 or more characteristic symptoms, followed by at least 1 month of persistent worry about further attacks, worry about their consequences, or a maladaptive behavior change. Medical mimics such as acute coronary syndrome, pulmonary embolism, arrhythmia, hyperthyroidism, pheochromocytoma, and hypoglycemia must be excluded first. First-line treatment is a selective serotonin reuptake inhibitor such as sertraline, started low and titrated slowly, combined with cognitive behavioral therapy; benzodiazepines are reserved for short-term acute control.

Delirium is an acute, fluctuating disturbance of attention and awareness caused by an underlying medical, toxic, or metabolic insult. Diagnosis rests on the Confusion Assessment Method; management is identification and treatment of the precipitating cause plus withdrawal of deliriogenic drugs, reserving antipsychotics for safety only.

Thyroid storm is a rare, life-threatening exaggeration of thyrotoxicosis with multiorgan dysfunction and mortality up to 30%, most often precipitated by discontinuation of antithyroid drugs, infection, surgery, or trauma in a patient with underlying hyperthyroidism. It is a clinical diagnosis treated emergently in the ICU with intravenous beta-blockade, a thionamide (propylthiouracil transitioning to methimazole), potassium iodide given only after the thionamide, and high-dose glucocorticoids.

A first or provoked seizure requires a focused history to distinguish it from syncope or a nonepileptic event, urgent glucose and electrolyte testing, brain MRI, and outpatient EEG; an unprovoked seizure with normal imaging and EEG usually does not require antiepileptic drug therapy, since epilepsy is defined only after a second unprovoked seizure or a high-risk first one.