Benzodiazepine withdrawal syndrome—often abbreviated to
benzo withdrawal—is the cluster of
symptoms that emerge when a person who has taken
benzodiazepines, either medically or recreationally, and has developed a physical
dependence undergoes dosage reduction or discontinuation. Development of physical dependence and or addiction and the resulting withdrawal symptoms, some of which may last for years, may result from either drug seeking behaviors or from taking the medication as prescribed. Benzodiazepine withdrawal is characterized by sleep disturbance, irritability, increased tension and
anxiety,
panic attacks, hand tremor, sweating, difficulty with concentration, confusion and cognitive difficulty, memory problems, dry retching and nausea, weight loss,
palpitations, headache, muscular pain and stiffness, a host of perceptual changes,
hallucinations,
seizures,
psychosis, and suicide (see "Signs and Symptoms" section below for full list). Further, these symptoms are notable for the manner in which they wax and wane and vary in severity from day to day or week by week instead of steadily decreasing in a straightforward monotonic manner.