Long-term diazepam therapy and clinical outcome.

Area of Science:

• Pharmacology
• Psychiatry
• Clinical Medicine

Background:

• Chronic anxiety affects a significant patient population requiring effective long-term management.
• Benzodiazepines, such as diazepam, are commonly prescribed for anxiety disorders.
• Understanding the long-term efficacy and safety profile of diazepam is crucial for clinical practice.

Purpose of the Study:

• To evaluate the efficacy and tolerance of prolonged diazepam treatment in chronically anxious outpatients.
• To investigate the relationship between treatment duration and the incidence of withdrawal reactions.

Main Methods:

• A double-blind study involving 180 chronically anxious outpatients.
• Continuous treatment with diazepam (15-40 mg/day) for six to 22 weeks.
• Assessment of anxiolytic effects and monitoring for withdrawal reactions.

Main Results:

• Diazepam demonstrated sustained anxiolytic effects without evidence of tolerance over 22 weeks.
• A significant number of patients benefited from prolonged diazepam therapy.
• Treatment duration was a key factor in withdrawal reactions: 5% incidence for <8 months vs. 43% for ≥8 months.
• Withdrawal reactions were distressing but not life-threatening or incapacitating.

Conclusions:

• Prolonged diazepam treatment is effective for chronic anxiety and does not lead to tolerance.
• Longer treatment durations increase the likelihood of withdrawal symptoms, which are manageable.
• Gradual dose tapering is effective in managing benzodiazepine withdrawal reactions.