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A study into the effects of the benzodiazepine receptor antagonist, flumazenil, on benzodiazepine withdrawal symptoms persisting after withdrawal was carried out by Lader and Morton. Study subjects had been benzodiazepine-free for between one month and five years, but all reported persisting withdrawal effects to varying degrees.
In a study of long term diazepam use, withdrawal phenomena occurred in 5% of patients taking diazepam for less than 8 months and 43% of patients taking diazepam for more than 8 months. [17] This can lead to benzodiazepines being taken for longer than originally intended, as people continue to take the drugs over a long period of time to ...
It has been estimated that between 30% and 50% of long-term users of benzodiazepines will experience withdrawal symptoms. [14] However, up to 90% of patients withdrawing from benzodiazepines experienced withdrawal symptoms in one study, but the rate of taper was very fast at 25% of dose per week. [15]
Long-acting benzodiazepines with long-acting active metabolites, such as diazepam and chlordiazepoxide, are often prescribed for benzodiazepine or alcohol withdrawal as well as for anxiety if constant dose levels are required throughout the day. Shorter-acting benzodiazepines are often preferred for insomnia due to their lesser hangover effect.
Repeated benzodiazepine withdrawal episodes may result in similar neuronal kindling as that seen after repeated withdrawal episodes from alcohol, with resultant increased neuro-excitability. The glutamate system is believed to play an important role in this kindling phenomenon with AMPA receptors which are a subtype of glutamate receptors being ...
An equianalgesic chart can be a useful tool, but the user must take care to correct for all relevant variables such as route of administration, cross tolerance, half-life and the bioavailability of a drug. [5] For example, the narcotic levorphanol is 4–8 times stronger than morphine, but also has a much longer half-life. Simply switching the ...
Benzodiazepine abuse is steadily increasing and is now a major public health problem. Benzodiazepine abuse is mostly limited to individuals who abuse other drugs, i.e. poly-drug abusers. Most prescribed users do not abuse their medication, however, some high dose prescribed users do become involved with the illicit drug scene.
Benzodiazepines are associated with an increased risk of suicide due to aggression, impulsivity, and negative withdrawal effects. [10] Long-term use is controversial because of concerns about decreasing effectiveness, physical dependence, benzodiazepine withdrawal syndrome, and an increased risk of dementia and cancer.